Manley Severe Duty Intake Valve - 2.300 in Head - 0.342 in Valve Stem - 5.344 in Long - Big Block Chevy - Set of 8 Auto Racing Shoe Heat Shield Thermal Time Constant: < 15

Thermal Time Constant: < 15 sec

1970-1972 GMC P25/P2500 Van

Fits Any 2

LM-2 to O2 Sensor

Directional Heading

Manley Severe Duty Intake Valve - 2.300 in Head - 0.342 in Valve Stem - 5.344 in Long - Big Block Chevy - Set of 8 Auto Racing Shoe Heat Shield Thermal Time Constant: < 15Product Description: Intake Valve Severe Duty 2. 300 in Head 0. 342 in Valve Stem 5. 344 in Long Stainless Big Block Chevy Set of 8 Manley Performance high performance and racing engine parts have been powering winners since 1966. Since our inception in March 1966, Manley Performance Products has been at the forefront of the high performance automotive industry. Founded by gearhead Hank Manley shortly after his graduation from Brown University, our