Fits 1966–1984 Big Twin engines (except 1980–1981). Increases mid-range and top-end power; idle is unaffected. Check spring travel and clearances on 1980+ models.
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Complete 132" engine performance kit converts 114"/117" oil-cooled M8 to 132" with big-bore cylinders, performance-matched 550 cam, adjustable relief valve, and serviceable components.
Complete S&S top-end kit with heads, pre-fit forged pistons, and all necessary hardware for quick installation.
Bolts into 1966–1984 Big Twin engines (except 1980–1981); increases mid- and high-rpm power while preserving idle.
- Complete top-end assembly with heads, cylinders, pistons, and gaskets.
- Pistons pre-fit to cylinders for minimal downtime.
- Includes all hardware, clamps, and seals; made in the USA.
- Designed for S&S® T-Series T2 long block engines for Harley Davidson® big twins
- 2.000" intake and 1.605" exhaust valves with S&S® ports
- S&S® high performance valve springs support cam lift up to .650"
- Compatible with stock rocker boxes, exhaust, and intake manifolds
- Requires S&S valve cover gasket kit; not machined for compression releases
Designed for 124" Hot Set Up Kits and '99-'17 Twin Cams; requires crankcase machining.
ArmorX™-coated pistons with ArmorFit™ skirt coating for smooth, quiet operation. Includes pistons, rings, pins and circlips. Made in the U.S.A.
Great street cam for 84–88-inch strokers; upgraded from the #6 grind with strong torque from 2,200–6,500 rpm.
ArmorX™ coating for reduced wear and ArmorFit™ skirt coating for smooth, quiet operation. Includes pistons, rings, pins and circlips. Made in the USA.
OEM-style replacement; accepts all OEM connectors and retainers.