This 100 cubic inch S&S SB100 engine fits 1986-'03 HD Sportster Models FEATURES AND BENEFITS • Bolt-in replacement for stock engines • "Square" motor configuration (equal bore and stroke) produces excellent torque, greatly increases engine life • S&S Super G carburetor with Classic Teardrop air cleaner • S&S high flow Super Stock® cylinder heads • High strength supreme rods, S&S cylinders, and forged pistons • Adjustable pushrods and pushrod cover assemblies • Hydraulic tappets and S&S forged roller rocker arms • S&S billet gear cover kit and billet aluminum rocker covers • Includes oil pump and oil filter mount
One year parts warranty.
Requires 1991-'03 style primary components and transmission. Will not accept 1986-'90 4 speed transmission, charging system or primary components.
Primary components, starter charging system, ignition system, and transmission components are not included.