S&S CYCLE Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam 31-0181A

Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam
Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI), Features greater overall strength than stock crankcases, Strong, dependable Timken®-style sprocket shaft bearings, All passages between the crankcase cam support plate are O-ring sealed, Compatible with most stock components, Rear motor mount bolts directly to the stock transmission; fully compatible with the stock primary, charging system, and other stock components, Made in the USA, This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.