Active filters
State-of-the-art compression release valves that reduce hot starts and lower starter and battery loads. Sold as a set and made in the U.S.A.
State-of-the-art design to reduce hot starts and starter/battery loads. Custom molded knobs, sold in pairs, made in the U.S.A.
Made to exact tolerances; does not include oil holes; made in USA.
Premium tappet gaskets engineered for long-term reliability and fuel resistance. Do not require gasket sealer. Made in the USA.
Durable multilayer gasket with Viton®-coated layers for reliable sealing in shift tube applications.
High-quality, fuel-resistant rocker gasket with Viton-coated sealing and stainless steel core. Made in the USA.
Stellite-tipped stainless-steel valve nitrided for improved wear resistance, corrosion protection, and reduced friction.
Designed for HD® Evolution OEM replacement. Machined from high‑grade metal with a corrosion‑resistant dark finish. Multipurpose alignment pins. Made in the USA.
High-density powdered metal valve seats for superior wear resistance and thermal stability. Tested for track and street use.
Stellite-tipped nitrided valve for improved wear resistance, reduced friction, and corrosion protection. Made in the USA.
- Precision-machined bronze construction for durability
- Tapered nose to reduce port obstruction and improve flow
- Compatible with unleaded fuel and a range of valve‑stem materials
- Accepts top‑hat valve seals (sold separately)
- Made in the USA