Molnar Small Block Chev 4340 Forged Crank - 3.875" Stroke

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 SMALL BLOCK FORGED CRANKS
Part Number
Description
Stroke
Main
Rod Pin Diameter
Minimum Rod Length
Bob Weight
350-3480BB6F-57
Small Block Chevy
3.480
350
2.100
5.700
1800
350-3480BB6F-RN
50# Legal SB Late Model Stock
3.480
350
2.100
5.700
1450
350-3500BB6F-60
Small Block Chevy
3.500
350
2.100
6.000
1800
350-3625BB6F-57
Small Block Chevy
3.625
350
2.100
5.700
1800
350-3750BB6F-57
Small Block Chevy
3.750
350
2.100
5.700
1800
350-3750BB6F-60
Small Block Chevy
3.750
350
2.100
6.000
1800
350-3750BB6F-OPS-57
Small Block Chevy One Piece Rear Seal
3.750
350
2.100
5.700
1800
350-3800BB6F-57
Small Block Chevy
3.800
350
2.100
5.700
1800
350-3875BB6F-57
Small Block Chevy
3.800
350
2.100
5.700
1800
350-4000BB6F-585
Small Block Chevy
4.000
350
2.100
5.850
1800
350-4000BB6F-60
Small Block Chevy
4.000
350
2.100
6.000
1800
400-3875CB6F-585
Small Block Chevy
3.875
400
2.100
5.850
1800