S&S Cycle 70-84 BT w/ 3-5/8in Bore Super Stock Alternator Style Crankcase - Natural

This S&S Cycle Super Stock crankcase is built with a 3-5/8 inch bore, specifically for 1970 through 1984 Harley-Davidson Big Twin models. It's a well-built foundation whether you're doing a stock replacement or building a high-performance machine. The cases are pre-clearanced to handle strokes up to and including 5 inches, giving you room to grow your engine's power.

You'll appreciate that these crankcases are compatible with stock 1970 through 1999 flywheel assemblies, primary covers, and gear covers. They're also clearanced to accept 38 amp alternator stators, which is a common upgrade for improved electrical output. The natural finish gives a clean, classic look that works well in many custom builds. This part is CARB compliant with EO# D-355-5, meaning it meets California Air Resources Board emissions standards.

This crankcase is designed to fit a range of Harley-Davidson Big Twin models, including the Electra Glide Sport, Tour Glide, and Wide Glide. It's a solid choice for serious engine work where a strong, reliable crankcase is essential.