COMP Cams Magnum 253/253 Hydraulic Flat Cam for Chevrolet Big Block 396-454 11-214-4

Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts

Limited street use or bracket racing. 10.5:1+ compression, 3500+ stall or 4 speed. 4.10 or lower gears. Radical Idle.