Seller notes

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! CHEVY BIG BLOCK FORGED CRANKSPart NumberDescriptionStrokeMainRod Pin DiameterMinimum Rod LengthBob Weight 454-4000DC6F-6135Big Block Chevy4.0004542.2006.1352150454-4000DC6F-OPS-6135Big Block Chevy w/ One Piece Rear Seal4....

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