PRODUCT DESCRIPTION
Fits: 318-340 Block, Stroke: 4.125
Stroke:4.125
Main: 340
Rod pin diameter: 2.000
Min Rod length: 6.123
Bob Weight: 1850
Our 4340 forged crankshafts are heat treated to increase tensile strength, shot peened to increase fatigue life, nitrided for wear resistance and 100% mag particle inspected to ensure against cracks.
Sizes are held to the tightest tolerances you'll find in the racing industry!