CASE ENG BLK4.12507-17TC

Engine CaseReplacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI)Features greater overall strength than stock crankcasesStrong, dependable Timken®-style sprocket shaft bearingsAll passages between the crankcase cam support plate are O-ring sealedCompatible with most stock componentsIncludes S&S crankcase breather reed valve designed to eliminate oil carry-over and oil scavenging problemsRear motor mount bolts directly to the stock transmission; fully compatible with the stock primary, charging system, and other stock componentsMade in the USAThis project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.Clearanced for strokes up to 4-13/16" and cams up to 0.720" lift. Simple transmission case modifications is required.