{"product_id":"mcs512343","title":"70-84 Crankcase Assembly, Std Bore. Natural – 1970–1984 Shovelhead","description":"\u003ch2\u003e70-84 Crankcase Assembly, STD Bore. Natural – 1970–1984 Shovelhead\u003c\/h2\u003e\n\u003cp\u003eS\u0026amp;S Superstock™ crankcases; made from 356-T6 aluminum; are much stronger than the OEM case. OEM cases can\/may break in high performance or even stock applications; like more than a few of us found out the hard way. These S\u0026amp;S Superstock™ cases can be used for both stock replacement and racing applications. Important to the engine builder are the substantial savings in labor when using S\u0026amp;S cases. These cases come ''set up'' with sprocket shaft Timken main bearing races and cam needle bearings installed and pinion shaft main bearing race pressed in and line-honed. Additional parts that are supplied include Timken sprocket shaft bearings; cylinder studs; nickel plated case bolts; crankcase fittings; oil pressure sensor; timing \u0026amp; magnetic crankcase drain plugs and a special S\u0026amp;S design alternator stator plug clamp screw. The flywheel scrapers are machined to match the original 8-1\/2\" diameter flywheels. S\u0026amp;S cases maximize crankcase oil scavenging efficiency by using a ''ported'' design breather passageway. S\u0026amp;S cases are clearanced up to and including 5\"; no additional clearancing for strokers will be necessary. S\u0026amp;S cases come complete with assembly instructions. Note: The aluminum H-D oil pump; (26190-73) or the S\u0026amp;S oil pump; MCS 519923; can be used in 70-91 applications. Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components; prior to installation. It is of importance that a knowledg\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e70-84 Shovelhead (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; CRANKCASES\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e SET\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 512343\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Numbers\u003c\/h2\u003e\n\u003cp\u003eMCS Part Number: 512343\u003cbr\u003eManufacturer Part Number: 31-0003\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44341768061248,"sku":"MCS512343","price":1996.02,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/512344k.jpg?v=1776035362","url":"https:\/\/hogparts.co.uk\/products\/mcs512343","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}