SBF 1.570 Exhaust Valve 8mm 5.030 OAL

The SBF 1.570 Exhaust Valve 8mm 5.030 OAL is a precision-engineered component designed for Small Block Ford engine builds and high-performance modifications. This exhaust valve plays a crucial role in your engine's breathing system, effectively managing the expulsion of spent combustion gases from the combustion chamber. Whether you're working on a stock rebuild or enhancing performance, selecting the right exhaust valve is vital for optimal engine function.

This exhaust valve features an 8mm stem diameter and a 5.030-inch overall length (OAL), ensuring compatibility with AFR and 8mm stem SBF cylinder heads. The valve is designed to withstand thermal stress and high exhaust gas temperatures, thanks to modern metallurgy that enhances heat resistance compared to OEM components. Precision grinding of the valve face and stem guarantees concentricity, which is essential for maintaining compression and power output across the RPM range.

Engine builders and enthusiasts upgrading to aftermarket cylinder heads from Air Flow Research will find this exhaust valve to be an excellent OEM-equivalent replacement. Its specifications are tailored to meet the engineering tolerances of the original design, ensuring reliable performance in both street and strip applications. This valve is an essential choice for anyone looking to enhance their Small Block Ford engine's efficiency and power.