S&S Engine Crankcase Stock Bore Fits Harley Big Twin 1984-1991

Weight: 30.00 For higher performance applications or just a replacement for a worn out engine. These cases are compatible with the stock primary, charging system and all other stock components. Much stronger than stock crankcases in every aspect Includes bearings and installation hardware Clearanced for up to 5" strokes 1970-1984 Cases Clearanced for up to 38 amp stators 1984-1999 Cases Relocated cam chest oil pick-up increases gear case scavenging and virtually eliminates oil carryover at sustained high speeds A ported breather passageway and a machined breather window Crankcase breathing through cases and heads 1999-2006 Cases Extra large front motor mount for increased strength Large cam chest allows for up to .675" cam lift Timken style sprocket shaft bearings Includes S&S crankcase breather reed valve to eliminate oil carryover and scavenging problems Not legal for sale or use in California, or on any pollution controlled vehicles S&S® Natural Finish Stock Bore Crankcase Crankcase Style: 1984-1991 By: S&S CYCLE INC