Twin Cam Engine Case - 4 1/8in Bore with Stock Stud Pattern - Silver Powder-Coat

Replacement Twin Cam A engine cases for stock H-D chassis only (carb and EFI)Feature greater overall strength than stock crankcasesStrong, dependable Timken-style sprocket shaft bearingsClearanced for strokes up to and including 5inAll passages between the crankcase cam support plate are O-ring sealedCompatible with most stock componentsCam chest has clearance for up to .675in lift camsInclude 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 componentsAvailable with stock bore (ideal for replacement applications), 4in bore (ideal for use with the S&S Super Sidewinder Hot Set Up Kits), and 4 1/8in bore engines with stock or S&S cylinder stud pattern (ideal for custom applications and for use with the S&S 124in Hot Set UpKit)Available with silver powder-coat or black powder-coatMade 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.