Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy 11845-1 4125CSMBU * Performer RPM 460 heads

* Performer RPM 460 heads accept factory exhaust

Dodge & Plymouth 1970-1972 B & E-Body vehicles

cast deep aluminum transmission pans

requiring use of a Fuel Economy low friction and low HTHS (High Temperature High Shear) viscosity oil

Application specific (Non universal)Vehicle Applications: 2014-2018 Chevrolet Silverado/Sierra 1500 2wd/4wd (All Cabs) -2" to +2"Vehicle Applications: 2014-2018 Chevrolet Silverado/Sierra 1500 2wd/4wd (All Cabs) -2" to +2"

Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy 11845-1 4125CSMBU * Performer RPM 460 headsProduct Description: Exhaust Valve Severe Duty 1. 880 in Head 0. 342 in Valve Stem 5. 522 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