S&S Cycle SH-Series Long Block Engines

The S&S Cycle SH-Series long block engine (P/N 310-0975) is an 80 cu. in. air-cooled V-Twin engine designed to replace or upgrade the stock powerplant in 1970-84 Harley-Davidson® Big Twin motorcycles (Shovelhead era). This motor is designed with updated materials and technology to improve performance and reliability over a stock engine.

Key features:

* Engine specs: 3 1/2 in. bore and 4 1/4 in. stroke
* Compatibility: 1970–84 Harley-Davidson® Big Twins with alternator-style primary
* Available in natural crankcases with black powdercoated cylinders
* S&S hydraulic valvetrain and roller rockers
* Camshaft: Stock spec H-grind cam and billet gear cover
* Sold without ignition, carb, manifold, and air cleaner
* Stock Spec H-grind cam

Show Less