SBC Valve Seat - Intake 2.131 OD/1.845 ID/.312

The SBC Valve Seat - Intake 2.131 OD/1.845 ID/.312 from BRODIX is a precision-engineered component built for small-block Chevrolet cylinder head porting and valve train upgrades. Whether you're restoring a classic engine, building a performance street motor, or optimizing a race-ready package, this intake valve seat delivers the critical sealing surface needed to maintain compression, prevent hot gas blow-by, and ensure consistent combustion. Designed for serious engine builders and enthusiasts who demand OEM-quality specifications with proven reliability.

This valve seat features a 2.131-inch outer diameter with a 1.845-inch inner diameter and .312-inch thickness—specifications that match Brodix's precision manufacturing standards for intake applications. The design accommodates the flow requirements of modern port work and high-lift camshaft combinations without compromising the structural integrity required for sustained RPM and boost environments. Lightweight at just 0.09 lbs, the seat integrates seamlessly into ported cylinder heads where port shape and valve shrouding demand exact geometry to maximize efficiency and minimize turbulence across the valve face.

Builders working on small-block Chevrolet platforms—from 262 to 400 cubic inches—rely on Brodix valve seats for street applications, bracket racing, and circle track competition. Installation requires proper machining equipment and expertise; valve seats must be pressed or installed with precise concentricity to avoid leakage and valve recession over time. Pair this intake seat with matching exhaust seats and quality valve springs for a complete, balanced valve train that delivers both power and longevity across the RPM band.