Solid tappet assembly for improved high-RPM stability; made in the USA.
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High-capacity hydraulic tappets developed for increased load, lubrication and service life; billet body and wider rollers.
Precision-machined hydraulic tappet assemblies that eliminate valve-train noise and provide reliable, maintenance-free operation.
4340 chromoly pushrods with solid adjustable tappets for aggressive cam profiles and high RPM; made in the U.S.A.
Reduced 0.115" travel for higher RPM and decreased valve float.
Slower bleed-down and high-flow check valve for stable performance.
Precision bearings and steel construction; Spin-Tron developed and track proven.
Made in the U.S.A.; pump up lifters before installation and use a high-volume oil pump.
Revolutionary short-travel hydraulic lifters that reduce valve float, increase RPM and improve valve-train stability. Precision bearings and high-flow check valve; made in the U.S.A.
Includes eight long studs, two short studs and one top motor mount stud. One kit required per head.
Fully assembled replacement head optimized for smaller displacement engines. Intake manifold and gasket kits sold separately.
Fully assembled 79 cc Super Stock® cylinder heads with large valves, high-flow ports, and S&S valve springs. Works with 88–110 cu in engines. Does not include rocker components or gaskets.
Fully assembled Super Stock® heads with performance valve springs and moderate valve sizing for strong low- and midrange response. Compatible with stock rocker boxes, intake and exhaust; follow installation notes for compression releases and gasket use.
Fully assembled Super Stock® cylinder heads with high-flow ports and S&S® valve springs for improved low- and midrange performance. Compatible with stock rocker boxes and manifolds; some late-model touring motors are excluded.
- Electric compression release — opens with the start button, closes on release.
- Includes compression assembly, Deutsch connector, orange wedge, vinyl tube, and silicone cap.
- Special socket available separately for easier installation and removal.
- Not for use on OEM heads.
- Made in the U.S.A.
Fully assembled cylinder heads with large 1.940" intake and 1.575" exhaust valves for improved low- and midrange performance.
Deckable to 0.060" to raise compression; supports cams up to .650" lift; compatible with stock rocker boxes and manifolds.
Ductile cast-iron sleeved cylinders pressed into aluminum castings. Sleeve ribs lock to the casting; finished slightly undersized for final honing. Ideal for stock replacement.