Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.465 in Long - Small Block Chevy - Set of 8 1425011 PerTronix D134620 Flame-Thrower Electronic Distributor

PerTronix D134620 Flame-Thrower Electronic Distributor Cast Ford 351C with Ignitor Technology Vacuum Advance Black Cap

471 in Bore

3/8" ID x 5 ft lengthDerale has been the leader in performance cooling for decades

020" compressed thickness

Their involvement in INDY

Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.465 in Long - Small Block Chevy - Set of 8 1425011 PerTronix D134620 Flame-Thrower Electronic DistributorSEVERE 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