11/32 Intake Valve - BBC 2.250

The 11/32 Intake Valve – BBC 2.250 from DART is a precision-engineered intake valve purpose-built for big block Chevrolet engine builds and high-performance modifications. Whether you're rebuilding a tired 427, 454, or other BBC displacement, this stainless steel valve replaces worn or damaged originals with OEM-equivalent quality and reliability. Intake valves are critical to cylinder head sealing and fuel-air mixture flow; a compromised valve directly reduces combustion efficiency, increases blowby, and accelerates wear on rings and cylinder walls.

This valve features a 2.250 inch head diameter and an 11/32 inch valve stem with 0.250 inch oversize length, allowing precise fitment in aftermarket or ported cylinder heads. The stainless steel construction resists corrosion, thermal fatigue, and the extreme combustion pressures inherent to modified big block engines, ensuring repeatable seating and minimal stem wear over extended operation. The larger 2.250 inch head promotes superior airflow compared to stock intake valves, making it an ideal choice for carbureted or fuel-injected performance builds seeking increased volumetric efficiency without full head porting or valve replacement kits.

Mechanics and engine builders rely on DART intake valves during street, strip, and marine applications where BBC engines demand reliable cold-start sealing and consistent hot-running performance. This valve is sold individually, so verify your complete head requirements and purchase the correct quantity for your specific displacement and port configuration. Installation requires proper valve seat grinding, spring pressure verification, and rocker arm geometry checks to prevent reversion, float, or premature valve failure; professional machine shop installation is recommended unless you possess specialized equipment and experience.