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

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

SKU: 31-0181

Replacement Twin Cam A engine cases for stock H-D chassis only (carb and EFI).Feature greater overall strength than stock crankcases.Strong, dependable Timken-style sprocket shaft bearings.Clearanced for strokes up to and including 5in.All passages between the crankcase cam support plate are O-ring sealed.Compatible with most stock components.Cam chest has clearance for up to .675in lift cams.Include S&S crankcase breather reed valve designed to eliminate oil carry-over and oil scavenging problems.Rear motor mount bolts directly to the stock transmission; fully compatible with the stock primary, charging system, and other stock components.Available 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-coat.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.