Katech Engineering LLC - Valve Springs, Retainers & Seats

Since 1977, Katech Engineering has developed high-performance GM valve springs engineered to deliver precise valvetrain control, durability, and reliability under extreme engine speeds and loads. Designed for GM LS and LT platforms, our valve springs support aggressive camshaft profiles and high-RPM operation for street, track, and professional motorsports applications.

All Katech GM valve springs are engineered, tested, and quality-controlled in-house at our Clinton Township, Michigan facility. Developed using race-proven valvetrain dynamics and validation methods, each spring is matched for seat pressure, open pressure, and long-term durability to ensure consistent performance.

Built in the USA. Proven on the track.