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Cylinders with a stock bolt pattern, bored slightly under nominal size and left un-honed; designed for 124" hot set up kits and '99-'17 Twin Cams. Requires crankcase machining.
Complete cylinder and piston replacement kit for 80" Shovelhead engines that preserves stock compression; includes pistons, cylinders, rings, gaskets and mounting hardware. Made in USA.
Complete big-bore cylinder and piston kit with forged pistons, gaskets, and hardware; ideal for stroker engine builds. Made in the U.S.A.
Bolt-in big bore kit with cast ductile iron sleeves for improved heat transfer. Complete kit includes cylinders, forged pistons, rings, pins, clips and gaskets. Not for use with S&S 79cc heads.
Premium top-end gasket kit. Made in the USA. Rocker box gaskets sold separately.
Complete top-end gasket kit with head, base and exhaust gaskets plus O-rings. Made in the U.S.A. Rocker box gaskets sold separately.
Precision oil pump idler gear for Big Twin models; engineered for reliable operation.
Fits stock chassis; CNC-machined B3 cylinder heads; Super Stock™ T2 crankcases; TC3 oil pump; 10.5:1 compression.
Replaces the stock compliance-fitting or rigid-mount manifold for '84-'99. Fits 5.5550" length cylinders; compatible with stock or S&S heads. Made in USA.
Replacement ring set for S&S pistons. Sold as a set for two pistons. Made in the USA.