Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASAJ21A-MG Automatic Transmission AF103-10BLK

AF103-10BLK

The studs come with flat washers and nuts

AF380-04-01

Our Elite CNC'd full flow fittings are made from 6061-T6 aluminium and are individually hand polished then chrome plated to give our customers a stunning elite show quality finish that is easily maintained with a simple wipe of a cloth

D 9231-018-5 AF9231-018-5 5ft

Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASAJ21A-MG Automatic Transmission AF103-10BLKCallies Magnum Series Forged 4340 Crankshaft for Small Block Chevy3. 750" Stroke, 2. 100" Pin, 400 Mains CASAJ21A MG SAJ21A 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 crankshaft with unsurpassed wear