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Precision-machined Powerglide™ hydraulic tappets, hand-fit for exact cam timing and extended roller life.
Precision billet-machined tappets, hand-fitted for exact cam timing and improved roller life.
Precision roller assembly with larger outer rollers, smaller pin bearings for higher rpm, and an enlarged axle that eliminates internal movement. Made in the U.S.A.
High-precision hydraulic tappets with micro-finish bore and oversized axle for improved cam tracking.
- Fits cast iron and aluminum valve-lifter blocks
- Billet bearing metal construction
- Hand fit hydraulic unit, .0002" running fit
- Recommended block clearance .0007"–.0012"
Complete, ready-to-install connecting rod kit engineered for reliable replacement of stock components.
Reduce starting compression with easy-install manual release valves. Drill and tap each cylinder head 10 mm x 1.0 mm. Fits all Big Twin models.
Replacement component for Big Twin models; precision-machined to restore lubrication performance and reduce noise.
High-strength pinion shaft nut designed for secure gear-side installation and long service life.
Precision-made valve lock keys with a 10° lock angle. Heat-treated and made in the U.S.A. Designed for reliable valve keeper service.
High-lift valve springs providing correct spring force for performance cams in 74" and 80" motors. Max lift; requires proper valvetrain setup. Made in the United States.
Chrome-plated heavy-duty mounts, 30% thicker than stock; include chrome choke/horn brackets and socket-head hardware for select PART #s.
Secure support bracket kit for air cleaner; includes all gaskets and mounting hardware. Breather kits sold separately.