SBC S/D 1.625in Exhaust Valves

The SBC S/D 1.625in Exhaust Valves by MANLEY are essential components for enhancing the performance of small-block Chevrolet engines. Designed for builders aiming to improve airflow efficiency and exhaust scavenging, these valves are suitable for both street performance and competitive applications. Their precision engineering ensures they meet the demands of high-performance engine builds.

Manufactured from high-temperature alloy steel, these valves are built to withstand extreme combustion temperatures and thermal cycling, ensuring durability and performance. The 1.625-inch head diameter is optimized for exhaust gas exit velocity, while the hardened valve seat area resists wear from abrasive exhaust gases. This design minimizes blow-by and ensures precise valve seat contact for improved combustion efficiency.

Engine builders and machine shops trust MANLEY exhaust valves for their reliability and performance. These valves are compatible with standard SBC 11/32" diameter valve guides, making them a versatile choice for various engine setups. Whether for naturally aspirated or forced induction builds, these valves are engineered to work seamlessly with ported cylinder heads and high-lift camshaft profiles.