Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.165 in Long - Small Block Chevy / Ford - Set of 8 4122SMLRD and "clockable" lower halves for

and "clockable" lower halves for rotation of inlet and outlet to fit a number of chassis

Most columns include new floor mounts

Joes Wing Slider Actuators

63%-208% increase is sway bar rate over stock sway bar

Dart block parts kits include the same quality components we use in our performance engine blocks

Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.165 in Long - Small Block Chevy / Ford - Set of 8 4122SMLRD and "clockable" lower halves forSEVERE 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