{"product_id":"s-s-70-84-crankcase-assembly-3-5-8-bore-natural","title":"S\u0026S, 70-84 crankcase assembly, 3-5\/8\" bore. Natural","description":"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: 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\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 70-84 Shovelhead with 3-5\/8\" big bore (NU)\u003c\/p\u003e","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":54307923919175,"sku":"512342","price":2344.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7812\/0519\/files\/512344k_b49aa148-620a-4c17-98f5-aded43723ab3.jpg?v=1784486294","url":"https:\/\/www.chopperessentials.com\/products\/s-s-70-84-crankcase-assembly-3-5-8-bore-natural","provider":"Chopper Essentials Co.","version":"1.0","type":"link"}