Callies BB Chevy 4340 Forged Compstar Crank 4.250 Stroke 01215B 10 AN Female O-Ring Return

10 AN Female O-Ring Return

Requires 1 or 1-3/8 in Spring

Neck Brace 360 Degree Knitted Neck Support

External Pad

high tensile webbing

Callies BB Chevy 4340 Forged Compstar Crank 4.250 Stroke 01215B 10 AN Female O-Ring ReturnProduct Description: Crankshaft Compstar 4. 250 in Stroke Internal Balance Forged Steel 2 Piece Seal Big Block Chevy Sold Individually Callies Performance Products began manufacturing high performance crankshafts in 1989. With many years of engineering and employee experience, Callies has grown to be the industry leader for innovative product design. Callies Performance Products takes pride in staying ahead of the competition with the latest high tech