Katech Engineering LLC - Valves, Seals & Guides

Since 1977, Katech Engineering has applied race-winning experience and precision engineering to selecting and validating high-performance valves, seals, and guides for GM LS and LT cylinder heads. This category features trusted aftermarket components chosen to meet Katech’s strict standards for durability, fitment, and valvetrain stability.

All valves, seats, and guides offered are evaluated and validated in-house at our Clinton Township, Michigan facility using race-proven processes. Whether supporting high-RPM operation, aggressive camshaft profiles, or long-term reliability, these components deliver consistent sealing, airflow efficiency, and dependable performance in demanding street, track, and motorsports applications.

Built on experience. Proven on the track.