Howards Cams 45445006535: 45445006535 Billet Reaper E4340 Billet Steel Crankshaft for Big Block Chevy Mark IV Engines
Billet Reaper Billet Steel Crankshaft Chevy Big Block Mark IV Engines 396–502 454 Main Journal 4.500 in. Stroke 2.200 in. Rod Journal 6.535 in. Rod Length 2-Piece Rear Main Seal Internal Balance