V-Factor Cast Piston Kits For Big Twin & Sportster

Description

Weight: 1.20 High quality cast piston kits that meet or exceed original equipment specifications Compression ratio listed with each piston Sold each with piston pin and lock rings Low compression pistons enable the use of pump gas without detonation See the engine section for piston ring sets Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030″ OS V-FACTOR (Moly) 80ci – 1340cc STD Displacement 8.5:1 (Std. Compression) Ratio +.005″ OS Bore Size Fits Big Twin Evolution 1984/1999 (Imported)