Active filters
Precision-machined replacement set for stock-style crankcases; sold in pairs; made in the U.S.A.
For S&S® Super Stock® Heads only. Kit includes pistons, rings, wrist pins, and circlips. Made in the USA.
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. Modern alloys and low-noise skirt profiles. Kit includes pistons, rings, wristpins, and clips.
Complete set with forged pistons, rings, wristpins, and clips; made in the USA. Deck height 1.050", fits up to 4-5/8" stroke.
Precision-machined castings; inner functional cover with decorative bolt-on outer cover; internal breather passage vents the crankcase; accepts points or electronic ignition systems; made in the U.S.A.
Performance upgrade with precise deck height and wristpin fit; not compatible with twin cooled or '17 touring models.
Forged big-bore piston kit compatible with stock rods; cylinders may require boring for proper fit. Precision-made for correct clearances.
Durable forged pistons for big bore builds. Compatible with stock rods with tapered wristpin ends. Cylinders may be bored to fit; machine to nominal diameter for correct clearance.
Complete piston kit includes pistons, rings, wrist pins and clips for a full motor replacement. Made in the U.S.A.
Complete piston kit with forged pistons, rings, wrist pins and clips. Made in the U.S.A.
OEM-spec hydraulic camshaft, a dead-on reproduction of the '48–'84 Big Twins cams; ideal for restoring 74" and 80" engines.
Reverses rear cam rotation for increased cam lift potential and improved valve timing accuracy. Professional installation required; cam bearings and gaskets must be replaced.