Active filters
Complete KPMI®-compatible valve kit with Black Diamond™ stainless valves, heat‑treated keepers and valve stem seals. Sold as a complete kit for one engine. Made in the USA.
High-performance CNC-machined valves with hard-chrome finishing and flow-bench testing for durability and maximum airflow.
OEM-style cast iron valve guide machined to precision tolerances. Compatible with no-lead fuel. Made in the U.S.A.
High-performance Beehive Valve™ spring kit with progressively wound springs, hardened retainers and H.T. steel basewashers. Made in the USA. OEM-style valve keys sold separately.
Precision bushings with tapered leads for easy installation. Excellent surface finish; machinable. Made in the USA.
Forged performance replacement for stock hydraulic roller lifters. 100% tested and made in the U.S.A.
One-piece stellite-tipped stainless-steel valve with a nitrided surface to reduce wear and friction. Lightweight profiles for improved flow. Compatible with leaded and unleaded fuels. Made in the USA.
Precision-machined valve guide compatible with no-lead fuel and multiple valve-stem materials. Made in the USA.
Precision-machined valve guides compatible with no-lead fuel. Made in the USA.