Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.065 in Long - Small Block Chevy - Set of 8 Synthetic Engine Oil 1972-1980 Pontiac Laurentian

1972-1980 Pontiac Laurentian

crush sleeves

Externally balanced single bolt pattern 10

Bore MLS Head Gasket

Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.065 in Long - Small Block Chevy - Set of 8 Synthetic Engine Oil 1972-1980 Pontiac LaurentianSEVERE DUTY SERIES Superior Stainless for High Temperature Gasoline Engines Exhaust Material XH 428 with Double the Ultimate Tensile Strength ( at 1500 F ) over the competition Intake Material NK 844 with 1000 Times Better Fatigue Strength than competitors offerings 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