Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Big Block Chevy Full Face Helmet Block clearancing required

Block clearancing required

Ford Thick Film Ignition (TFI) coverage includes both modulators mounted on the distributor and remote mount applications

Protects from Excessive Water Splash:

4L60E / 4L70 E / Powerglide / TKO / TH350

(sold separately)

Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Big Block Chevy Full Face Helmet Block clearancing requiredProduct Description: Exhaust Valve Severe Duty 1. 880 in Head 0. 342 in Valve Stem 5. 422 in Long Stainless Big Block Chevy Sold Individually 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