Active filters
Increases mid-range and top-end power for street and drag bikes while keeping idle stable to 6,000 rpm. Works with solid or hydraulic lifters. Made in the USA. Check coil bind and clearances before installation.
Precision-machined cast iron valve guide compatible with no-lead fuel; accepts special seals (sold separately). Made in the USA.
Precision-machined shouldered valve guide; accepts special seals (sold separately). Made in USA.
Precision-machined C63000 bronze valve guides with tapered nose for improved flow. Accept OEM-style top hat seals (sold separately). OEM style, made in the USA.
Precision C630 bronze valve guides with a tapered nose, compatible with no-lead fuel and chromed stems; accepts OEM top-hat seals. OEM style.
Precision machined valve keeper keys; split, tumbled and heat treated for lasting performance. Made in the USA.
High-rpm cam for modified 80"–88" motors with a broad powerband to 6000+ rpm. Check coil bind and clearances; for use with high lift springs and collars.
One-piece stellite-tipped nitrided valve that improves wear resistance, reduces friction, and delivers lightweight, flow-optimized profiles.
One-piece stellite-tipped nitrided valve with enhanced wear resistance and improved flow. Compatible with leaded and unleaded fuels. Made in USA.
Precision nitrided component with superior wear resistance and low friction, compatible with leaded and unleaded fuels.
Nitrided treatment for superior wear resistance and reduced friction. Stellite-tipped face and corrosion-resistant construction provide excellent flow and durability. Compatible with leaded and unleaded fuels. Made in the USA.
Low‑friction PTFE valve guide seals with fillers for stability and a twin‑spring design for continuous tension.
Progressively wound springs designed for reliable valvetrain control and long fatigue life. Complete kit for one engine, made in the USA.