Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASMJ21A-MG Product:3.750" Stroke, 2.100" Pin, 400 Mains with Big Block Chevy Snout Hex Hose Finisher 1-15/16" (49mm)

Hex Hose Finisher 1-15/16" (49mm) I

Retro Breathers feature classic styling with a two piece design for easy maintenance

Includes 1/8" NPT sender

AF931-12-10

Power Steering Pump PulleySuit Saginaw Pump (66-76) With 1/8" Keyway & Serpentine Belt

Callies Magnum Series Forged 4340 Crankshaft for Small Block Chevy CASMJ21A-MG Product:3.750" Stroke, 2.100" Pin, 400 Mains with Big Block Chevy Snout Hex Hose Finisher 1-15/16" (49mm)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