8mm 1.600 Exhaust Valve SBC/SBF Race

The 8mm 1.600 Exhaust Valve SBC/SBF Race from Air Flow Research is a precision-engineered component designed for serious Small Block Chevy and Small Block Ford engine builders seeking maximum flow efficiency and reliability under extreme racing conditions. This stainless steel exhaust valve is purpose-built for high-performance applications where stock or semi-race valves fall short of meeting competitive demands. Whether you're assembling a street-strip engine or preparing for bracket racing, this valve delivers the durability and thermal stability required for sustained high-RPM operation.

Constructed from premium stainless steel, the 8mm 1.600 Exhaust Valve features an 8 mm stem diameter and a total length of 5.030 inches, ensuring proper sealing and fitment in race-prepared cylinder heads. The 1.600-inch head diameter is optimized for SBC and SBF applications, providing superior flow characteristics compared to OEM specifications. Air Flow Research's race-grade engineering means this valve has been stress-tested to handle extreme temperature cycling and high-velocity exhaust gas flow without warping, cracking, or losing its critical seal. The stainless construction resists corrosion and oxidation, extending component lifespan even in aggressive racing environments where exhaust temperatures regularly exceed 1,100 degrees Fahrenheit.

Race engine builders and performance enthusiasts trust AFR valves as direct replacements or upgrades when building from the ground up. Installation requires proper valve seat machining and timing verification to ensure correct seat angles and installed height. This single valve is sold individually, making it ideal for replacing damaged components or completing matched valve sets. Compatible with both small block Chevrolet and small block Ford platforms, it integrates seamlessly into heads already prepped for race service and is essential for any build targeting consistent horsepower gains and reliable operation at competition-grade power levels.