-40%

Molnar Big Block Chev 4340 Forged Crank -4.250" Stroke

$ 469.39

Availability: 96 in stock
  • Brand: Molnar
  • Returns Accepted: ReturnsNotAccepted
  • Condition: New
  • Manufacturer Part Number: 454-4250DC6F-6385

    Description

    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 CRANKS
    Part Number
    Description
    Stroke
    Main
    Rod Pin Diameter
    Minimum Rod Length
    Bob Weight
    454-4000DC6F-6135
    Big Block Chevy
    4.000
    454
    2.200
    6.135
    2150
    454-4000DC6F-OPS-6135
    Big Block Chevy w/ One Piece Rear Seal
    4.000
    454
    2.200
    6.135
    2150
    454-4250DC6F-6135
    Big Block Chevy
    4.250
    454
    2.200
    6.135
    2150
    454-4250DC6F-6385
    Big Block Chevy
    4.250
    454
    2.200
    6.385
    2150
    454-4250DC6F-OPS-6385
    Big Block Chevy w/ One Piece Rear Seal
    4.250
    454
    2.200
    6.385
    2150
    454-4250DC8F-6385
    Big Block Chevy w/ 8 Counterweights
    4.250
    454
    2.200
    6.385
    2150
    454-4375DC8F-6385
    Big Block Chevy w/ 8 Counterweights
    4.375
    454
    2.200
    6.385
    2150
    454-4500DC6F-6535
    Big Block Chevy
    4.500
    454
    2.200
    6.535
    2300
    454-4500DC8F-6535
    Big Block Chevy w/ 8 Counterweights
    4.500
    454
    2.200
    6.535
    2300
    454-4750DC8F
    Big Block Chevy w/ 8 Counterweights
    4.750
    454
    2.200
    6.635
    2300