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CAL-SMJ21A-MG PART NUMBER
SMJ21A-MG Callies Magnum Crankshaft SB Chevy 3.750 BB Post$3,723.00
Small Block Chevy, 3.750 Stroke, 400 Main, 2.100 Rod Journal, 2 Piece Rear Main Seal, 4340 Forged Steel, Big Block Post (Crank Snout). Build to order. Learn More -
CAL-SAJ24A-MG PART NUMBER
SAJ24A-MG Callies Magnum Crankshaft SB Chevy 3.750$3,184.00
Small Block Chevy, 3.750 Stroke, 400 Main, 2.000 Rod Journal, 2 Piece Rear Main Seal, 4340 Forged Steel. Build to order. Learn More
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CAL-SAJ21A-MG PART NUMBER
SAJ21A-MG Callies Magnum Crankshaft SB Chevy 3.750$3,184.00
Small Block Chevy, 3.750 Stroke, 400 Main, 2.100 Rod Journal, 2 Piece Rear Main Seal, 4340 Forged Steel. Build to order. Learn More