Performance upgrade with precise deck height and wristpin fit; not compatible with twin cooled or '17 touring models.
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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 with pistons, rings, wrist pins and clips for S&S Motors. Made in the U.S.A.
Complete piston kit with rings, wrist pins and clips for full motor replacement.
Made in the U.S.A.
Transparent cam cover designed to match Assault series air cleaners. Made in the USA.
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.
High-lift camshaft for modified engines with 106"+ displacement and 10.0:1–11.0:1 compression.
Not a bolt-in kit; professional installation required.
Kit contains camshafts, bearings, gearcover gasket, retaining ring, o-ring, thread lock and instructions.
Installer must verify coil bind and clearances. Made in the USA.
Replacement ring set for S&S pistons; includes rings for two pistons; made in the USA.
Replacement ring set for S&S pistons; includes rings for two pistons and made in the USA.
Replacement ring set for one piston; verify piston compatibility before purchase.
Replacement ring set for two S&S pistons. Made in the USA.
Bolt-in cam kit for 2200–5200 RPM performance; boosts horsepower past 100. Compatible with compression ratios up to 11.0:1. Includes bearings, o-rings, and hardware. No tuning required.
Replacement ring set for compatible pistons. Comes as a set for two pistons. Made in the USA.
Bolt-in MR103 camshaft kit for 103" engines (9.7:1–10.5:1). Easier starting, full compression at speed. Includes hardware and instructions.