S&S CYCLE Engine Case — Bore 4.125 in, Super Stock® T2, Wrinkle Black – 06, 12-17 Dyna, 07-17 CVO, 09-10, 13-16 Trike, 11 Touring, 07-17 Softail

Replacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI).

These cases deliver greater overall strength than stock crankcases and use strong, dependable Timken®-style sprocket shaft bearings for reliable power transfer.

All passages between the crankcase cam support plate are O-ring sealed to improve sealing, and the design is compatible with most stock components.

The rear motor mount bolts directly to the stock transmission, and the case is 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 assembler's responsibility to verify all clearances and assembly specifications.

Does not include or require a crankcase breather reed valve. Clearanced for strokes up to 4-13/16" and cams up to 0.720" lift. Simple transmission case modifications are required.