{"title":"KB Keith Black Performance Motorcycle Pistons","description":null,"products":[{"product_id":"zodiac-239810","title":"KB 3⅝-Inch Big Bore Shovelhead Piston Set – +0.010-Inch","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Piston Kits\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKB Big Bore Piston set 3-5\/8 .010 Shovel\u003c\/p\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eSee the product description and specifications for application details.\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239810\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239810\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62697442050435,"sku":"ZPN239810","price":340.12,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/ZPN239810.png?v=1790287594"},{"product_id":"zodiac-239800","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 std BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 std BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239800\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239800\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290485123,"sku":"ZPN239800","price":275.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239843","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 +.005 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 +.005 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239843\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239843\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290517891,"sku":"ZPN239843","price":275.22,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239801","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 .010 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 .010 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239801\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239801\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290550659,"sku":"ZPN239801","price":275.22,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239802","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 .020 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 .020 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239802\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239802\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290583427,"sku":"ZPN239802","price":275.22,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239803","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 .030 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 .030 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239803\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239803\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290616195,"sku":"ZPN239803","price":275.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239804","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 .040 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 .040 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239804\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239804\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290648963,"sku":"ZPN239804","price":275.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239805","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 .050 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 .050 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239805\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239805\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290681731,"sku":"ZPN239805","price":275.22,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239806","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 .060 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 .060 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239806\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239806\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290714499,"sku":"ZPN239806","price":275.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239807","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 .070 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. He was the first to build 4000 plus horsepower V-8 race engines. Keith now has put all his knowledge and experience into the manufacturing of aftermarket Harley-Davidson pistons. The use of the special hypereutectic aluminum alloy, developed and race tested by Keith himself, makes a piston that is light-weight and has more features than an expensive forged piston. These features include reduced wear and decreased fuel and oil consumption. Tighter running tolerances result in an engine that runs quietly and provides more power. The low heat transfer of the hypereutectic aluminum alloy keeps the skirts cool so piston expansion is minimal. Test engines have been run with as little as 0.0005\" (1\/2 thousands) piston-to-wall clearance. The high ring placement reduces detonation and increases the top ring temperature. Keith Black pistons will make maximum power at 2 to 4 degrees less total timing than conventional pistons. Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 .070 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239807\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239807\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290747267,"sku":"ZPN239807","price":275.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-239808","title":"KB Keith Black Performance Motorcycle Pistons KB Piston set 8.5:1 .080 BT41-79","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eKeith Black is one of America's most respected Drag-Race engine designers and builders. 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Available in standard and over sizes for Knucklehead, Panhead, Shovelhead and Evolution Big Twin models from 1941 to present and Sportster 1200. Also available in various Big-Bore and High-compression versions as well as a Big Bore kit that will convert your 883 Sportster into a High-Torque 1200 model. Pistons are competitively priced.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 1: \u003c\/strong\u003eComplete piston kits contains 2 pistons with Hastings chrome moly rings, piston pins and circlips.\u003cstrong\u003e\u003cbr\u003e \u003cbr\u003e Note 2:\u003c\/strong\u003e A limited number of KB pistons have the ring grooves crossing the piston pin hole. In order to have the piston rings properly supported these pistons come with piston ring support rings. As support rings do not have a sealing function they do not have to be replaced when you install new piston rings, but sometimes new ones are needed because a ring is lost or broken.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Piston set 8.5:1 .080 BT41-79\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN239808\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 239808\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715290780035,"sku":"ZPN239808","price":275.22,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn239800.png?v=1790630961"},{"product_id":"zodiac-724239","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.437\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. 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All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.437\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724239\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724239\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715293532547,"sku":"ZPN724239","price":304.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724239.png?v=1790630971"},{"product_id":"zodiac-724249","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.437\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. 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All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.437\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724249\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724249\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715293565315,"sku":"ZPN724249","price":304.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724249.png?v=1790630980"},{"product_id":"zodiac-724240","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.442\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. Pistons are formed in a forging press an then fully machined. the combination of this alloy and forging process allows the piston to flex under detonation or pre-ignition, giving the best resistance to cracking. Since 4032 alloy has a low expansion rate but higher than the Keith Black Hypereutectic pistons, it will require a .001\" wider piston to wall clearance. Keith Black forged alloy pistons are suited for High Performance street and race applications including high compression and NOS equipped bikes. All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.442\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724240\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724240\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715293598083,"sku":"ZPN724240","price":304.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724239.png?v=1790630971"},{"product_id":"zodiac-724250","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.442\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. 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All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.442\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724250\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724250\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715293630851,"sku":"ZPN724250","price":304.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724249.png?v=1790630980"},{"product_id":"zodiac-724241","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.447\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. Pistons are formed in a forging press an then fully machined. the combination of this alloy and forging process allows the piston to flex under detonation or pre-ignition, giving the best resistance to cracking. Since 4032 alloy has a low expansion rate but higher than the Keith Black Hypereutectic pistons, it will require a .001\" wider piston to wall clearance. Keith Black forged alloy pistons are suited for High Performance street and race applications including high compression and NOS equipped bikes. All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.447\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724241\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724241\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715293663619,"sku":"ZPN724241","price":304.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724239.png?v=1790630971"},{"product_id":"zodiac-724251","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.447\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. 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All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.447\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724251\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724251\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715293696387,"sku":"ZPN724251","price":304.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724249.png?v=1790630980"},{"product_id":"zodiac-724242","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.457\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. 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All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.457\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724242\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724242\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715293729155,"sku":"ZPN724242","price":304.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724239.png?v=1790630971"},{"product_id":"zodiac-724252","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.457\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. 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All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.497\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724246\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724246\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715293991299,"sku":"ZPN724246","price":304.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724239.png?v=1790630971"},{"product_id":"zodiac-724256","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.497\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. 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All pistons come with a set of Hastings piston rings, piston pins and spiral piston lock rings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Keith Black Performance Motorcycle Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Pistons \u0026amp; Piston Rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eKB Forged Pistons BT41-79 3.497\"\u003c\/p\u003e\u003ch2\u003ePart Numbers\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eItem Number:\u003c\/strong\u003e ZPN724256\u003cbr\u003e\u003cstrong\u003eZodiac Part Number:\u003c\/strong\u003e 724256\u003c\/p\u003e","brand":"KB Keith Black Performance Motorcycle Pistons","offers":[{"title":"Default Title","offer_id":62715294024067,"sku":"ZPN724256","price":304.97,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/zpn724249.png?v=1790630980"},{"product_id":"zodiac-724247","title":"KB Keith Black Performance Motorcycle Pistons KB Forged Pistons BT41-79 3.507\"","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThese pistons are made from forged 4032 alloy that has an 11% silicon content. 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