{"product_id":"s-s-cycle-special-application-crankcase-for-harley-evo-1984-2000-big-bore","title":"S\u0026S Engine Motor Cases 4 1\/8 Big Bore Harley EVO Custom Chopper 111 117 124","description":"\u003cp\u003e\u003ca data-polaris-unstyled=\"true\" class=\"Polaris-Link Polaris-Link--monochrome Polaris-Link--removeUnderline\" href=\"https:\/\/admin.shopify.com\/store\/cyclewarehouseonline\/products\/4796097396781\/variants\/33338150354989\" data-discover=\"true\" style=\"box-sizing: border-box; appearance: none; display: inline; padding: 0px; background: none rgb(255, 255, 255); border: 0px; font-size: 13px; cursor: pointer; touch-action: manipulation; outline: rgb(0, 91, 211) auto 2px; outline-offset: 2px; border-radius: 6px; font-family: Inter, -apple-system, BlinkMacSystemFont, \" san francisco ui roboto neue sans-serif\u003eS\u0026amp;S Engine Motor Cases 4 1\/8 Big Bore Harley EVO Custom Chopper 111 117 124\u003c\/a\u003eCase itself,no other parts included. a bit dusty but appears to be unused. Includes instruction manual.  From American ironhorse!\u003c\/p\u003e\u003cp\u003eThe crankcase marked with part number 31-0024L (or 310024L) is an S\u0026amp;S Cycle engine component designed for Harley-Davidson Evolution Big Twin engines. It is a big-bore, special application crankcase designed for high-performance builds. \u003c\/p\u003e\u003cp\u003eS\u0026amp;S Cycle Crankcase 31-0024L Details\u003c\/p\u003e\u003cp\u003eManufacturer: S\u0026amp;S Cycle.\u003c\/p\u003e\u003cp\u003eEngine Compatibility: Fits 1984-1999 Harley-Davidson models with the Evolution (EVO) Big Twin engine, including various Electra Glide, Softail, and Dyna models.\u003c\/p\u003e\u003cp\u003eMaterial: Cast from A356 T-6 heat-treated aluminum alloy.\u003c\/p\u003e\u003cp\u003eBore Size: It is designed for big-bore applications and has a bore size of 4 1\/4 inches. It can also be found in a 4 1\/8\" bore option.\u003c\/p\u003e\u003cp\u003eApplication: It is part of the S\u0026amp;S Big Bore Super Sidewinder engine line and is a \"Special Application\" (SA) case, built to handle large cylinder bores and strokes up to 5\".\u003c\/p\u003e\u003cp\u003eFeatures:\u003c\/p\u003e\u003cp\u003eEnhanced oil scavenging and optimized breather timing.\u003c\/p\u003e\u003cp\u003eClearanced for long strokes.\u003c\/p\u003e\u003cp\u003eDesigned for strength beyond stock cases, with additional reinforcement. \u003c\/p\u003e\u003cp\u003eSelling as pictured.\u003c\/p\u003e\u003cp\u003eMore than welcome to pick up at shop in Butler PA \u0026amp; save shipping.\u003c\/p\u003e\u003cp\u003e012926-JM3\u003c\/p\u003e","brand":"cyclewarehouse.online","offers":[{"title":"Default Title","offer_id":46550799483042,"sku":"012926-31-0047- crankcase","price":1299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0335\/9824\/2861\/files\/img2026-01-29-12-08-09-989.jpg?v=1769708122","url":"https:\/\/cyclewarehouse.online\/products\/s-s-cycle-special-application-crankcase-for-harley-evo-1984-2000-big-bore","provider":"cyclewarehouse.online","version":"1.0","type":"link"}