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DOMESTIC CRANK SHAFTS
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:
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Call us at 1-616-940-4640
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Email us at sales@molnartechnologies.com
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Order online through one of our Official Distributors
CLICK A PRODUCT BELOW TO ADD TO YOUR CART AND PURCHASE.​
CHEVROLET CRANKS
CHEVY SMALL BLOCK FORGED CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
350-3480BB6F-57 | Small Block Chevy | 3.480 | 350 | 2.100 | 5.700 | 1800 | $1,013.52 | $921.38 | |
350-3480BB6F-RN | 50# Legal SB Late Model Stock | 3.480 | 350 | 2.100 | 5.700 | 1500 | $1,081.37 | $983.06 | |
350-3500BB6F-60 | Small Block Chevy | 3.500 | 350 | 2.100 | 6.000 | 1850 | $1,013.52 | $921.38 | |
350-3750BB6F-57 | Small Block Chevy | 3.750 | 350 | 2.100 | 5.700 | 1800 | $1,013.52 | $921.38 | |
350-3750BB6F-60 | Small Block Chevy | 3.750 | 350 | 2.100 | 6.000 | 1800 | $1,013.52 | $921.38 | |
350-3750BB6F-OPS-57 | Small Block Chevy - On Piece Rear Seal | 3.750 | 350 | 2.100 | 5.700 | 1800 | $1,013.52 | $921.38 | |
350-3800BB6F-57 | Small Block Chevy | 3.800 | 350 | 2.100 | 5.700 | 1800 | $1,013.52 | $921.38 | |
350-3875BB6F-57 | Small Block Chevy | 3.800 | 350 | 2.100 | 5.700 | 1800 | $1,013.52 | $921.38 | |
350-4000BB6F-585 | Small Block Chevy | 4.000 | 350 | 2.100 | 5.850 | 1850 | $1,013.52 | $921.38 | |
350-4000BB6F-60 | Small Block Chevy | 4.000 | 350 | 2.100 | 6.000 | 1850 | $1,013.52 | $921.38 | |
400-3750CB6F-585 | Small Block Chevy | 3.750 | 400 | 2.100 | 5.850 | 1850 | $1,013.52 | $921.38 | |
400-3875CB6F-585 | Small Block Chevy | 3.875 | 400 | 2.100 | 5.850 | 1850 | $1,013.52 | $921.38 | |
400-4000CB6F-585 | Small Block Chevy | 4.000 | 400 | 2.100 | 5.850 | 1850 | $1,013.52 | $921.38 | |
400-4125CB6F-60 | Small Block Chevy | 4.125 | 400 | 2.100 | 6.000 | 1850 | $1,013.52 | $921.38 |
CHEVY SMALL BLOCK LIGHTWEIGHT CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
283-3350AD6L-60 | Lightweight Small Block Chevy | 3.350 | 283 | 1.888 | 6.000 | 1750 | $1,411.55 | $1,283.22 | |
350-3500BA6L-60 | Lightweight Small Block Chevy | 3.500 | 350 | 2.000 | 6.000 | 1750 | $1,411.55 | $1,283.22 | |
350-3500BB6L-57 | Lightweight Small Block Chevy | 3.500 | 350 | 2.100 | 5.700 | 1750 | $1,411.55 | $1,283.22 | |
350-3500BB6L-60 | Lightweight Small Block Chevy | 3.500 | 350 | 2.100 | 6.000 | 1750 | $1,411.55 | $1,283.22 | |
350-3750BB6L-57 | Lightweight Small Block Chevy | 3.750 | 350 | 2.100 | 5.700 | 1750 | $1,411.55 | $1,283.22 | |
350-3750BB6L-60 | Lightweight Small Block Chevy | 3.750 | 350 | 2.100 | 6.000 | 1750 | $1,411.55 | $1,283.22 | |
350-3875BB6L-60 | Lightweight Small Block Chevy | 3.875 | 350 | 2.100 | 6.000 | 1750 | $1,411.55 | $1,283.22 |
CHEVY LS CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
346-3622LB6F-24 | Chevy LS - 24 Tooth | 3.622 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-3622LB6F-58 | Chevy LS - 58 Tooth | 3.622 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-3750LB6F-24 | Chevy LS - 24 Tooth | 3.750 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-3750LB6F-58 | Chevy LS - 58 Tooth | 3.750 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-3900LB6F-24 | Chevy LS - 24 Tooth | 3.900 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-3900LB6F-58 | Chevy LS - 58 Tooth | 3.900 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-4000LB6F-24 | Chevy LS - 24 Tooth | 4.000 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-4000LB6F-58 | Chevy LS - 58 Tooth | 4.000 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-4125LB6F-24 | Chevy LS - 24 Tooth | 4.125 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-4125LB6F-58 | Chevy LS - 58 Tooth | 4.125 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-4250LB6F-24 | Chevy LS - 24 Tooth | 4.250 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 | |
346-4250LB6F-58 | Chevy LS - 58 Tooth | 4.250 | LS Chevy | 2.100 | 6.125 | 1800 | $1,139.98 | $1,036.34 |
CHEVY LS 8 COUNTERWEIGHT BILLET
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
346-3622LB8B-24 | Chevy LS - 24 Tooth | 3.622 | LS Chevy | 2.100 | 6.125 | 1750 | $2,782.50 | $2,619.75 | |
346-3622LB8B-58 | Chevy LS - 58 Tooth | 3.622 | LS Chevy | 2.100 | 6.125 | 1750 | $2,782.50 | $2,619.75 | |
346-4000LB8B-24 | Chevy LS - 24 Tooth | 4.000 | LS Chevy | 2.100 | 6.125 | 1750 | $2,782.50 | $2,619.75 | |
346-4000LB8B-58 | Chevy LS - 58 Tooth | 4.000 | LS Chevy | 2.100 | 6.125 | 1800 | $2,782.50 | $2,619.75 |
CHEVY LS7 LONG SNOUT CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
346-4000LB6F-LS7-24 | Chevy LS7 w/ Dry Sump Snout - 24 Tooth | 4.000 | LS Chevy | 2.100 | 6.125 | 1800 | $1,307.19 | $1,188.35 | |
346-4000LB6F-LS7-58 | Chevy LS7 w/ Dry Sump Snout - 58 Tooth | 4.000 | LS Chevy | 2.100 | 6.125 | 1800 | $1,307.19 | $1,188.35 | |
346-4100LB6F-LS7-24 | Chevy LS7 w/ Dry Sump Snout - 24 Tooth | 4.100 | LS Chevy | 2.100 | 6.125 | 1800 | $1,307.19 | $1,188.35 | |
346-4100LB6F-LS7-58 | Chevy LS7 w/ Dry Sump Snout - 58 Tooth | 4.100 | LS Chevy | 2.100 | 6.125 | 1800 | $1,307.19 | $1,188.35 |
CHEVY BIG BLOCK FORGED CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
454-4000DC6F-6135 | Big Block Chevy | 4.000 | 454 | 2.200 | 6.135 | 2200 | $1,131.62 | $1,028.74 | |
454-4000DC6F-OPS-6135 | Big Block Chevy w/ One Piece Rear Seal | 4.000 | 454 | 2.200 | 6.135 | 2200 | $1,131.62 | $1,028.74 | |
454-4250DC6F-6135 | Big Block Chevy | 4.250 | 454 | 2.200 | 6.135 | 2200 | $1,131.62 | $1,028.74 | |
454-4250DC6F-6385 | Big Block Chevy | 4.250 | 454 | 2.200 | 6.385 | 2200 | $1,131.62 | $1,028.74 | |
454-4250DC6F-OPS-6385 | Big Block Chevy w/ One Piece Rear Seal | 4.250 | 454 | 2.200 | 6.385 | 2300 | $1,131.62 | $1,028.74 | |
454-4250DC8F-6385 | Big Block Chevy w/ 8 Counterweights | 4.250 | 454 | 2.200 | 6.385 | 2300 | $1,288.54 | $1,171.40 | |
454-4375DC8F-6385 | Big Block Chevy w/ 8 Counterweights | 4.375 | 454 | 2.200 | 6.385 | 2300 | $1,288.54 | $1,171.40 | |
454-4375DC8F-OPS-6385 | Big Block Chevy w/ 8 Counterweights and One Piece Seal | 4.375 | 454 | 2.200 | 6.385 | 2150 | $1,288.54 | $1,171.40 | |
454-4500DC8F-6535 | Big Block Chevy w/ 8 Counterweights | 4.500 | 454 | 2.200 | 6.535 | 2300 | $1,288.54 | $1,171.40 | |
454-4750DC8F-660 | Big Block Chevy w/ 8 Counterweights | 4.750 | 454 | 2.200 | 6.600 | 2250 | $1,288.54 | $1,171.40 | |
454-4750DC8F-670 | Big Block Chevy w/ 8 Counterweights | 4.750 | 454 | 2.200 | 6.700 | 2300 | $1,288.54 | $1,171.40 |
CHRYSLER CRANKS
CHRYSLER SMALL BLOCK FORGED CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
340-3580EB6F | Small Block Chrysler -2.100" Rod Pins | 3.580 | 340 | 2.100 | 6.123 | 1900 | $1,209.80 | $1,099.82 | |
340-3580EF6F | Small Block Chrysler -2.125" Rod Pins | 3.580 | 340 | 2.125 | 6.123 | 1900 | $1,209.80 | $1,099.82 | |
340-3790EB6F | Small Block Chrysler -2.100" Rod Pins | 3.790 | 340 | 2.100 | 6.123 | 1900 | $1,209.80 | $1,099.82 | |
340-4000EB6F | Small Block Chrysler -2.100" Rod Pins | 4.000 | 340 | 2.100 | 6.123 | 1900 | $1,209.80 | $1,099.82 | |
340-4000EF6F | Small Block Chrysler -2.125" Rod Pins | 4.000 | 340 | 2.250 | 6.123 | 1900 | $1,209.80 | $1,099.82 | |
340-4125EA6F | Small Block Chrysler -2.000" Rod Pins | 4.125 | 340 | 2.000 | 6.123 | 1900 | $1,209.80 | $1,099.82 | |
360-3790FB6F | Small Block Chrysler -2.100" Rod Pins | 3.790 | 360 | 2.100 | 6.125 | 1900 | $1,209.80 | $1,099.82 | |
360-4000FF6F | Small Block Chrysler -2.125" Rod Pins | 4.000 | 360 | 2.125 | 6.125 | 1900 | $1,209.80 | $1,099.82 |
CHRYSLER GEN III HEMI CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
345-3580JF6F | Chrysler Gen III Hemi w/ Stock Size Rod Journals | 3.580 | GEN III Hemi | 2.126 | 6.125 | 1700 | $1,192.13 | $1,083.76 | |
345-3593JB6F | Chrysler Gen III Hemi w/ 2.100" Rod Pins NHRA Approved | 3.593 | GEN III Hemi | 2.100 | 6.125 | 1700 | $1,192.13 | $1,083.76 | |
345-3795JB6F | Chrysler Gen III Hemi w/ 2.100" Rod Pins NHRA Approved | 3.795 | GEN III Hemi | 2.100 | 6.125 | 1700 | $1,192.13 | $1,083.76 | |
345-3900JA6F | Chrysler Gen III Hemi w/ 2.000" Rod Pins | 3.900 | GEN III Hemi | 2.000 | 6.125 | 1700 | $1,192.13 | $1,083.76 | |
345-3900JB6F | Chrysler Gen III Hemi w/ 2.100" Rod Pins | 3.900 | GEN III Hemi | 2.100 | 6.125 | 1600 | $1,192.13 | $1,083.76 | |
345-4000JB6F | Chrysler Gen III Hemi w/ 2.100" Rod Pins | 4.000 | GEN III Hemi | 2.100 | 6.125 | 1600 | $1,192.13 | $1,083.76 | |
345-4050JA6F | Chrysler Gen III Hemi w/ 2.000" Rod Pins | 4.050 | GEN III Hemi | 2.000 | 6.125 | 1700 | $1,192.13 | $1,083.76 | |
345-4080JA6F | Chrysler Gen III Hemi w/ 2.000" Rod Pins | 4.080 | GEN III Hemi | 2.000 | 6.125 | 1700 | $1,192.13 | $1,083.76 | |
345-4250JA6F | Chrysler Gen III Hemi w/ 2.000" Rod Pins | 4.250 | GEN III Hemi | 2.000 | 6.125 | 1700 | $1,192.13 | $1,083.76 |
CHRYSLER GEN III HEMI 8 COUNTERWEIGHT BILLET CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
345-3900JB8B | Chrysler Gen III Hemi w/ 2.100" Rod Pins | 3.900 | GEN III Hemi | 2.100 | 6.125 | 1750 | $2,782.50 | $2,619.75 | |
345-4050JB8B | Chrysler Gen III Hemi w/ 2.100" Rod Pins | 4.050 | GEN III Hemi | 2.100 | 6.125 | 1750 | $2,782.50 | $2,619.75 |
CHRYSLER 383-400 CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
383-3910NC6F | 383/400 Chrysler - 2.200" Rod Pins | 3.910 | 383/400 | 2.200 | 6.450 | 2200 | $1,172.80 | $1,076.53 | |
383-4150NC6F | 383/400 Chrysler - 2.200" Rod Pins | 4.150 | 383/400 | 2.200 | 6.450 | 2200 | $1,172.80 | $1,076.53 | |
383-4250NC6F | 383/400 Chrysler - 2.200" Rod Pins | 4.250 | 383/400 | 2.200 | 6.500 | 2200 | $1,172.80 | $1,076.53 |
CHRYSLER 426-440 BIG BLOCK CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
426-3750MC6F | Big Block Chrysler 8 Bolt Flange | 3.750 | 426/440 | 2.200 | 6.760 | 2600 | $1,172.80 | $1,076.53 | |
426-3750ME6F | Big Block Chrysler 8 Bolt Flange | 3.750 | 426/440 | 2.375 | 6.760 | 2600 | $1,172.80 | $1,076.53 | |
426-4150MC6F | Big Block Chrysler 8 Bolt Flange | 4.150 | 426/440 | 2.200 | 6.760 | 2300 | $1,172.80 | $1,076.53 | |
426-4150ME6F | Big Block Chrysler 8 Bolt Flange | 4.150 | 426/440 | 2.375 | 6.760 | 2300 | $1,172.80 | $1,076.53 | |
426-4250MC6F | Big Block Chrysler 8 Bolt Flange | 4.250 | 426/440 | 2.200 | 6.760 | 2300 | $1,172.80 | $1,076.53 | |
426-4375MC6F | Big Block Chrysler 8 Bolt Flange | 4.375 | 426/440 | 2.200 | 6.760 | 2300 | $1,172.80 | $1,076.53 | |
426-4500MC6F | Big Block Chrysler 8 Bolt Flange | 4.500 | 426/440 | 2.200 | 6.760 | 2300 | $1,172.80 | $1,076.53 | |
440-3750ME6F | Big Block Chrysler 6 Bolt Flange | 3.750 | 426/440 | 2.375 | 6.760 | 2600 | $1,172.80 | $1,076.53 | |
440-4150MC6F | Big Block Chrysler 6 Bolt Flange | 4.150 | 426/440 | 2.200 | 6.760 | 2300 | $1,172.80 | $1,076.53 | |
440-4150ME6F | Big Block Chrysler 6 Bolt Flange | 4.150 | 426/440 | 2.375 | 6.760 | 2300 | $1,172.80 | $1,076.53 | |
440-4250MC6F | Big Block Chrysler 6 Bolt Flange | 4.250 | 426/440 | 2.200 | 6.760 | 2300 | $1,172.80 | $1,076.53 |
FORD CRANKS
FORD SMALL BLOCK CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
302-3250GB6F | 302 Ford w/ 302 Width Rod Pins | 3.250 | 302 | 2.100 | 5.400 | 1750 | $1,067.37 | $970.34 | |
302-3400GB6F | 302 Ford w/ 302 Width Rod Pins | 3.400 | 302 | 2.100 | 5.400 | 1750 | $1,067.37 | $970.34 | |
351-3500HB6F-60 | 351 Ford w/ 2.100" Chevy Rod Pins | 3.500 | Cleveland | 2.100 | 6.000 | 1800 | $1,067.37 | $970.34 | |
351-3500HB6F-RN | 50# Ford Late Model Stock | 3.500 | Cleveland | 2.100 | 6.000 | 1600 | $1,220.33 | $1,109.39 | |
351-3750HB6F-60 | 351 Ford w/ 2.100" Chevy Rod Pins | 3.750 | Cleveland | 2.100 | 6.000 | 1800 | $1,067.37 | $970.34 | |
351-3850HB6F-60 | 351 Ford w/ 2.100" Chevy Rod Pins | 3.850 | Cleveland | 2.100 | 6.000 | 1800 | $1,067.37 | $970.34 | |
351-4000HB6F-60 | 351 Ford w/ 2.100" Chevy Rod Pins | 4.000 | Cleveland | 2.100 | 6.000 | 1700 | $1,067.37 | $970.34 | |
351-4000HB6F-62 | 351 Ford w/ 2.100" Chevy Rod Pins | 4.000 | Cleveland | 2.100 | 6.200 | 1800 | $1,067.37 | $970.34 |
FORD MODULAR 8 COUNTERWEIGHT BILLET
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
281-3543SJ8B | 4.6L Ford Modular Billet w/ 8 Counterweights | 3.543 | 2.657 | 2.086 | 5.933 | 1780 | $2,782.50 | $2,619.75 |
FORD BIG BLOCK CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
460-4300PC6F | 460 Ford w/ 2.200" Rod Pins | 4.300 | 460 | 2.200 | 6.700 | 2400 | $1,302.33 | $1,183.93 | |
460-4500PC6F | 460 Ford w/ 2.200" Rod Pins | 4.500 | 460 | 2.200 | 6.700 | 2400 | $1,302.33 | $1,183.93 | |
460-4600PC6F | 460 Ford w/ 2.200" Rod Pins | 4.600 | 460 | 2.200 | 6.700 | 2400 | $1,302.33 | $1,183.93 |
PONTIAC CRANKS
PONTIAC 400 CRANKS
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
401-4375RC6F | 400 Pontiac w/ 2.200" Rod Pins | 4.375 | 400 | 2.200 | 6.535 | 2300 | $1,228.38 | $1,116.71 | |
401-4650RC6F | 400 Pontiac w/ 2.200" Rod Pins | 4.650 | 400 | 2.200 | 6.535 | 2300 | $1,228.38 | $1,116.71 | |
401-4250RC6F | 400 Pontiac w/ 2.200" Rod Pins | 4.250 | 400 | 2.200 | 6.535 | 2300 | $1,228.38 | $1,116.71 | |
401-4500RC6F | 400 Pontiac w/ 2.200" Rod Pins | 4.500 | 400 | 2.200 | 6.535 | 2300 | $1,228.38 | $1,116.71 |
BUICK CRANKS
BUICK 455 BILLET
Part Number | Description | Stroke | Main | Rod Pin Diameter | Minimum Rod Length | Bob Weight | Retail | OUR PRICE | Add To Cart |
|---|---|---|---|---|---|---|---|---|---|
455-4400UC8B | 455 Buick w/ 2.200" Rod Pins Uses .925" Wide Buick Rods | 4.400 | 455 Buick | 2.200 | 6.600 | 2200 | $2,782.50 | $2,619.75 |
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