SBC B/R 1.500in Exhaust Valve

The MANLEY SBC B/R 1.500in Exhaust Valve is a precision-engineered component designed for serious small-block Chevrolet engine builders and performance enthusiasts who demand reliability in high-RPM applications. This exhaust valve is essential for those assembling or rebuilding stroker motors, big-displacement builds, or forced-induction platforms.

Manufactured using premium materials and strict dimensional tolerances, this valve ensures consistent sealing, thermal stability, and fatigue resistance under sustained high-load conditions. The 1.500-inch head diameter is optimized for small-block Chevrolet cylinder heads with B/R (bore and rod) configurations, providing balanced flow characteristics and reliable closure across the entire RPM band.

This exhaust valve is particularly beneficial for those rebuilding SBC heads with aftermarket or OEM B/R specifications, including applications in 383, 400, and large-displacement stroker configurations. It is crucial for maximizing power output in performance cams or boost applications where exhaust scavenging is critical.