Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASMJ21A-MG Intake Systems 400 Series Push Lock 45°

400 Series Push Lock 45° Hose End -4ANBlue Finish

400 Series Push Lock 60° Hose End -6ANBlack Finish

billet aluminium hat and hanger assembly

AR755-2750

Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASMJ21A-MG Intake Systems 400 Series Push Lock 45°Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy3. 750" Stroke, 2. 100" Pin, 400 Mains with Big Block Chevy Snout CASMJ21A MG SMJ21A MG After years of service, Magnum crankshafts by Callies have established themselves as one of the most durable competition crankshafts ever produced. Magnum crankshafts are manufactured from ultra pure SAE 4340 steel. Callies then subjects this material to multiple heat treatments, resulting in a