Engine

The 90° Bend/Angled Valve Stem simplifies tire inflation on dual disc wheels with its direct 90° design, made from lightweight aluminum.
Complete top-end kit with forged pistons, rings, retainer clips and chrome piston pins. Includes X-Ring package; pistons made in the USA.
High-flow 91 cc Super Stock® cylinder heads for S&S® T-Series T2 long block engines; supports up to .650" cam lift and fits stock rocker boxes and manifolds when used with appropriate hardware.
ArmorX™-coated pistons with ArmorFit™ skirt coating for smooth, quiet operation. Includes pistons, rings, pins and circlips. Made in the U.S.A.
Complete kit for S&S® Super Stock® Heads: pistons, rings, wrist pins, and circlips. Deck height 1.3750" for 80" engines. Made in the USA.
Race-grade forged pistons with modern alloys and piston skirt profiles. Kit includes pistons, rings, wristpins, and clips.
Forged pistons with modern alloys and optimized skirt profiles for reduced noise and long 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.
Forged pistons with complete hardware kit for improved strength and long life.
Forged pistons 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.