Heat treated aluminum Super Stock engine cases from S&S for '92-'99 Evo Big Twin rebuilds. Rebuilds and big bore builds both start with cases you can trust. S&S casts the Super Stock from A356 T-6 heat treated aluminum alloy, line hones all the races, and precision machines the breather cavity to optimize breather timing for maximum oil scavenging. The cases are machined to accept a front mount oil filter assembly and machined for EFI fitment, and they come with a deep parts list: crankcase bolts, cylinder studs, Timken sprocket shaft bearing assembly, pinion race, cam needle bearing assembly, fittings, plugs, and instructions. Choose standard bore or 3.625" big bore. Features Cast from A356 T-6 heat treated aluminum alloy All races line honed Breather cavity precision machined to optimize breather timing for maximum oil scavenging Machined to accept a front mount oil filter assembly Machined for EFI fitment Includes crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, breather and oil line fittings, oil pressure switch, oil screen with spring and plug, sprocket shaft Timken bearing assembly and oil seal, pinion shaft main bearing race, cam needle bearing assembly, oil pump drive shaft bushing, and installation instructions Made in the U.S.A. Fitment Fits '92-'99 Evo Big Twin. Choose standard bore or big bore (3.625" cylinder bore). Frequently Asked Questions Which bore should I pick?Standard bore suits stock displacement rebuilds; the 3.625" big bore version is for larger displacement builds. Match the cases to your cylinder and piston plan. Do they support EFI?Yes. The cases are machined for EFI fitment as well as carbureted setups.
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