- Wide 2500–6900+ RPM power range
- Requires carburetor/throttle body tuning and performance exhaust/intake
- High-performance valve springs, pushrods and lifters required
- Made in the USA
Active filters
Forged pistons with generous valve pockets for big valves and cams.
Includes rings, piston pins and circlips for two pistons.
Force-fed pin oiling and a pressure-seal groove enhance sealing and durability.
Complete camshaft installation kit with quick change gaskets and premium roller bearings for reliable camplate service.
For S&S® Super Stock® Heads only. Kit includes pistons, rings, wrist pins, and circlips. Made in the USA.
Pair of precision pins that ensure correct press fit when servicing Twin Cam chain drive cam plates and tensioners.
Temporarily reduces crank compression for easier starts, bolt-in kit that increases power from 3200–5700 rpm; includes camshafts and hardware. Installer must verify clearances. Not for models with OEM compression releases.
Easy-start camshaft kit for select 88–124 CID engines. Bolt-in installation; includes required hardware. Installer must verify clearances.
Eases cold starts by reducing starting compression; bolt-in kit with all required hardware. Not for models with OEM compression releases.
Forged piston kit for stock Big Twin motors; includes pistons, rings, wristpins, and clips. Made in the U.S.A.
Forged pistons for superior strength and durability.
Modern alloys and skirt profiles reduce noise and extend engine life.
Includes pistons, rings, wristpins, and clips.
Forged pistons for superior strength and long engine life; kit includes pistons, rings, wristpins, and clips.
Forged piston kit with ArmorGlide™ coated skirts, rings, retainer clips, and chrome piston pins. ArmorPlating on Twin Cam pistons improves ring seal and detonation resistance. Made in the USA.
Forged piston kit with ArmorGlide™ skirts, rings, retainer clips, and chrome piston pins; Twin Cam ArmorPlating for added protection. Made in USA.
Complete piston kit with rings, wristpins, and clips. Made in the USA. Fits up to 4-5/8" stroke; deck height 1.050".