Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASAJ21A-MG Automatic Transmission ORB to AN Straight Male

ORB to AN Straight Male Flare Adapter 920-12-10BLK AF920-12-10BLK -10 ORB to -12AN

Independent Mount BracketsSuit SB Chev Side Mount Alternator (Long W/P)

7/16" Thread x 30

Keep your engine well-oiled for optimal performance with our oil pan pickups

The studs come with flat washers and nuts

Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASAJ21A-MG Automatic Transmission ORB to AN Straight MaleCallies 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