Complete replacement set with PVD-coated barrel face top rings, Napier second rings, and three-piece oil control for improved sealing and oil economy.
Active filters
Bolt-in cam for M-Eight 107" and 114" engines; maintains stock compression and improves midrange torque.
Precision cam sprocket built for reliable valve timing and long service life.
Great mid-range torque and power with free-flow exhaust pipes and injector tuning.
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.
Fits 124" and 128" big-bore motors with head work. Made in the U.S.A. Requires hi-lift springs.
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.
PTFE valve guide seals with twin-spring tension for reduced friction and reliable valve control. Made in USA.