SBC S/M 1.500in Exhaust Valve

The Manley SBC S/M 1.500in Exhaust Valve is a precision-engineered component designed for serious small-block Chevrolet engine builders and performance enthusiasts. This exhaust valve is essential for those rebuilding high-revving SBC engines or upgrading existing setups, delivering the reliability and flow characteristics necessary for aggressive power applications.

Featuring advanced metallurgy and precision manufacturing, this 1.500-inch exhaust valve ensures superior heat dissipation and resistance to thermal stress during sustained high-RPM operation. The valve head diameter is optimized for small-block cylinder head porting, providing excellent flow characteristics while maintaining structural integrity under boost or nitrous conditions.

Ideal for SBC engine builds ranging from mild street performers to full-race applications, this exhaust valve is particularly effective when paired with quality cylinder heads and a complete valve train upgrade. Proper installation requires seat machining and valve adjustments for optimal performance.