Forged & Billet Domestic Crankshafts: CHEVROLET
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!

How to order your MOLNAR TECHNOLOGIES cranks:
Part Number Description Stroke Main Rod Pin
Diameter
Min. Rod
Length
Bob
Weight
Retail
Price
MOLNAR 
PRICE 
 
CHEVROLET CRANKS
 
CHEVY BIG BLOCK FORGED
454-4000DC6F-6135 Big Block Chevy 4.000 454 2.200 6.135 2150 $ 959.26 $ 872.06 
454-4000DC6F-OPS-6135 Big Block Chevy w/ One Piece Rear Seal 4.000 454 2.200 6.135 2150 $ 959.26 $ 872.06 
454-4250DC6F-6135 Big Block Chevy 4.250 454 2.200 6.135 2150 $ 959.26 $ 872.06 
454-4250DC6F-6385 Big Block Chevy 4.250 454 2.200 6.385 2150 $ 959.26 $ 872.06 
454-4250DC6F-OPS-6385 Big Block Chevy w/ One Piece Rear Seal 4.250 454 2.200 6.385 2150 $ 959.26 $ 872.06 
454-4250DC8F-6385 Big Block Chevy w/ 8 Counterweights 4.250 454 2.200 6.385 2150 $ 1,123.79 $ 1,021.63 
454-4375DC8F-6385 Big Block Chevy w/ 8 Counterweights 4.375 454 2.200 6.385 2150 $ 1,123.79 $ 1,021.63 
454-4500DC6F-6535 Big Block Chevy 4.500 454 2.200 6.535 2300 $ 959.26 $ 872.06 
454-4500DC8F-6535 Big Block Chevy w/ 8 Counterweights 4.500 454 2.200 6.535 2300 $ 1,123.79 $ 1,021.63 
454-4750DC6F Big Block Chevy w/ 6 Counterweights 4.750 454 2.200 6.635 2300 $ 959.26 $ 872.06 
454-4750DC8F Big Block Chevy w/ 8 Counterweights 4.750 454 2.200 6.635 2300 $ 1,123.79 $ 1,021.63 
 
CHEVY LS
346-4000LB6F-610 Chevy LS 4.000 LS Chevy 2.100 6.125 1800 $ 1,003.88 $ 912.61 
346-4125LB6F-610 Chevy LS 4.125 LS Chevy 2.100 6.125 1800 $ 1,003.88 $ 912.61 
346-4250LB6F-610 Chevy LS 4.250 LS Chevy 2.100 6.125 1800 $ 1,003.88 $ 912.61 
 
CHEVY LS7 LONG SNOUT
346-4000LB6F-LS7 Chevy LS7 w/ Dry Sump Snout 4.000 LS Chevy 2.100 6.125 1800 $ 1,151.12 $ 1,046.48 
346-4100LB6F-LS7 Chevy LS7 w/ Dry Sump Snout 4.100 LS Chevy 2.100 6.125 1800 $ 1,151.12 $ 1,046.48 
 
CHEVY SMALL BLOCK FORGED
350-3480BB6F-57 Small Block Chevy 3.480 350 2.100 5.700 1800 $ 859.38 $ 781.26 
350-3480BB6F-RN 50# Legal SB Late Model Stock 3.480 350 2.100 5.700 1450 $ 925.48 $ 841.35 
350-3500BB6F-60 Small Block Chevy 3.500 350 2.100 6.000 1800 $ 859.38 $ 781.26 
350-3625BB6F-57 Small Block Chevy 3.625 350 2.100 5.700 1800 $ 859.38 $ 781.26 
350-3750BB6F-57 Small Block Chevy 3.750 350 2.100 5.700 1800 $ 859.38 $ 781.26 
350-3750BB6F-60 Small Block Chevy 3.750 350 2.100 6.000 1800 $ 859.38 $ 781.26 
350-3750BB6F-OPS-57 Small Block Chevy - One Piece Rear Seal 3.750 350 2.100 5.700 1800 $ 859.38 $ 781.26 
350-3800BB6F-57 Small Block Chevy 3.800 350 2.100 5.700 1800 $ 859.38 $ 781.26 
350-3875BB6F-57 Small Block Chevy 3.800 350 2.100 5.700 1800 $ 859.38 $ 781.26 
350-4000BB6F-585 Small Block Chevy 4.000 350 2.100 5.850 1800 $ 859.38 $ 781.26 
350-4000BB6F-60 Small Block Chevy 4.000 350 2.100 6.000 1800 $ 859.38 $ 781.26 
400-3875CB6F-585 Small Block Chevy 3.875 400 2.100 5.850 1800 $ 859.38 $ 781.26 
 
CHEVY SMALL BLOCK LIGHTWEIGHT
283-3350AD6L-60 Lightweight Small Block Chevy 3.350 283 1.888 6.000 1800 $ 1,280.31 $ 1,163.92 
350-3500BA6L-60 Lightweight Small Block Chevy 3.500 350 2.000 6.000 1800 $ 1,280.31 $ 1,163.92 
350-3500BB6L-57 Lightweight Small Block Chevy 3.500 350 2.100 5.700 1800 $ 1,280.31 $ 1,163.92 
350-3500BB6L-60 Lightweight Small Block Chevy 3.500 350 2.100 6.000 1800 $ 1,280.31 $ 1,163.92 
350-3750BB6L-57 Lightweight Small Block Chevy 3.750 350 2.100 5.700 1800 $ 1,280.31 $ 1,163.92 
350-3750BB6L-60 Lightweight Small Block Chevy 3.750 350 2.100 6.000 1800 $ 1,280.31 $ 1,163.92 
350-3875BB6L-60 Lightweight Small Block Chevy 3.875 350 2.100 6.000 1800 $ 1,280.31 $ 1,163.92 

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