{"product_id":"mcs512348","title":"48-64 Crankcase Assembly, Std Bore. Natural – 1948–1964 Panhead with Steel Primary","description":"\u003ch2\u003e48-64 Crankcase Assembly, STD Bore. Natural – 1948–1964 Panhead with Steel Primary\u003c\/h2\u003e\n\u003cp\u003eFor use with a ''tin'' (metal) primary housing. S\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: S\u0026amp;S crankcases for 36-54 Knuckle and Panhead models will not take OEM flywheels; pinion or sprocket shaft since late style (1955-up) Timken bearings are used in all S\u0026amp;S cases. 55-up shafts will not fit 36-54 OEM flywheels; S\u0026amp;S does not recommend machining 36-54 flywheels t\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e48-64 Panhead with steel primary (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 512348\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Numbers\u003c\/h2\u003e\n\u003cp\u003eMCS Part Number: 512348\u003cbr\u003eManufacturer Part Number: 31-0008\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":44341767897408,"sku":"MCS512348","price":2296.28,"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\/mcs512348","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}