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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:

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
3.48
350
2.1
5.7
1800
$1,013.52
$921.38
350-3480BB6F-RN
50# Legal SB Late Model Stock
3.48
350
2.1
5.7
1500
$1,081.37
$983.06
350-3500BB6F-60
Small Block Chevy
3.5
350
2.1
6
1850
$1,013.52
$921.38
350-3750BB6F-57
Small Block Chevy
3.75
350
2.1
5.7
1800
$1,013.52
$921.38
350-3750BB6F-60
Small Block Chevy
3.75
350
2.1
6
1800
$1,013.52
$921.38
350-3750BB6F-OPS-57
Small Block Chevy - On Piece Rear Seal
3.75
350
2.1
5.7
1800
$1,013.52
$921.38
350-3800BB6F-57
Small Block Chevy
3.8
350
2.1
5.7
1800
$1,013.52
$921.38
350-3875BB6F-57
Small Block Chevy
3.8
350
2.1
5.7
1800
$1,013.52
$921.38
350-4000BB6F-585
Small Block Chevy
4
350
2.1
5.85
1850
$1,013.52
$921.38
350-4000BB6F-60
Small Block Chevy
4
350
2.1
6
1850
$1,013.52
$921.38
400-3750CB6F-585
Small Block Chevy
3.75
400
2.1
5.85
1850
$1,013.52
$921.38
400-3875CB6F-585
Small Block Chevy
3.875
400
2.1
5.85
1850
$1,013.52
$921.38
400-4000CB6F-585
Small Block Chevy
4
400
2.1
5.85
1850
$1,013.52
$921.38
400-4125CB6F-60
Small Block Chevy
4.125
400
2.1
6
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
3.35
283
1.888
6
1750
$1,411.55
$1,283.22
350-3500BA6L-60
Lightweight Small Block Chevy
3.5
350
2
6
1750
$1,411.55
$1,283.22
350-3500BB6L-57
Lightweight Small Block Chevy
3.5
350
2.1
5.7
1750
$1,411.55
$1,283.22
350-3500BB6L-60
Lightweight Small Block Chevy
3.5
350
2.1
6
1750
$1,411.55
$1,283.22
350-3750BB6L-57
Lightweight Small Block Chevy
3.75
350
2.1
5.7
1750
$1,411.55
$1,283.22
350-3750BB6L-60
Lightweight Small Block Chevy
3.75
350
2.1
6
1750
$1,411.55
$1,283.22
350-3875BB6L-60
Lightweight Small Block Chevy
3.875
350
2.1
6
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
Chevy LS
3.622
LS Chevy
2.1
6.125
1800
$1,139.98
$1,036.34
346-3750LB6F
Chevy LS
3.75
LS Chevy
2.1
6.125
1800
$1,139.98
$1,036.34
346-3900LB6F
Chevy LS
3.9
LS Chevy
2.1
6.125
1800
$1,139.98
$1,036.34
346-4000LB6F
Chevy LS
4
LS Chevy
2.1
6.125
1800
$1,139.98
$1,036.34
346-4125LB6F
Chevy LS
4.125
LS Chevy
2.1
6.125
1800
$1,139.98
$1,036.34
346-4250LB6F
Chevy LS
4.25
LS Chevy
2.1
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
Chevy LS
3.622
LS Chevy
2.1
6.125
1750
$2,782.50
$2,619.75
346-4000LB8B
Chevy LS
4
LS Chevy
2.1
6.125
1750
$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
Chevy LS7 w/ Dry Sump Snout
4
LS Chevy
2.1
6.125
1800
$1,307.19
$1,188.35
346-4100LB6F-LS7
Chevy LS7 w/ Dry Sump Snout
4.1
LS Chevy
2.1
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
454
2.2
6.135
2200
$1,131.62
$1,028.74
454-4000DC6F-OPS-6135
Big Block Chevy w/ One Piece Rear Seal
4
454
2.2
6.135
2200
$1,131.62
$1,028.74
454-4250DC6F-6135
Big Block Chevy
4.25
454
2.2
6.135
2200
$1,131.62
$1,028.74
454-4250DC6F-6385
Big Block Chevy
4.25
454
2.2
6.385
2200
$1,131.62
$1,028.74
454-4250DC6F-OPS-6385
Big Block Chevy w/ One Piece Rear Seal
4.25
454
2.2
6.385
2300
$1,131.62
$1,028.74
454-4250DC8F-6385
Big Block Chevy w/ 8 Counterweights
4.25
454
2.2
6.385
2300
$1,288.54
$1,171.40
454-4375DC8F-6385
Big Block Chevy w/ 8 Counterweights
4.375
454
2.2
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
2.2
6.385
2150
$1,288.54
$1,171.40
454-4500DC8F-6535
Big Block Chevy w/ 8 Counterweights
4.5
454
2.2
6.535
2300
$1,288.54
$1,171.40
454-4750DC8F-660
Big Block Chevy w/ 8 Counterweights
4.75
454
2.2
6.6
2250
$1,288.54
$1,171.40
454-4750DC8F-670
Big Block Chevy w/ 8 Counterweights
4.75
454
2.2
6.7
2300
$1,288.54
$1,171.40

CHRYSLER CRANKS

CHEVY BIG 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
3.58
340
2.1
6.123
1900
$1,209.80
$1,099.82
340-3580EF6F
Small Block Chrysler -2.125" Rod Pins
3.58
340
2.125
6.123
1900
$1,209.80
$1,099.82
340-3790EB6F
Small Block Chrysler -2.100" Rod Pins
3.79
340
2.1
6.123
1900
$1,209.80
$1,099.82
340-4000EB6F
Small Block Chrysler -2.100" Rod Pins
4
340
2.1
6.123
1900
$1,209.80
$1,099.82
340-4000EF6F
Small Block Chrysler -2.125" Rod Pins
4
340
2.25
6.123
1900
$1,209.80
$1,099.82
340-4125EA6F
Small Block Chrysler -2.000" Rod Pins
4.125
340
2
6.123
1900
$1,209.80
$1,099.82
360-3790FB6F
Small Block Chrysler -2.100" Rod Pins
3.79
360
2.1
6.125
1900
$1,209.80
$1,099.82
360-4000FF6F
Small Block Chrysler -2.125" Rod Pins
4
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
345-3580JB6F
Chrysler Gen III Hemi w/ 2.100" Rod Pins
3.58
GEN III Hemi
2.1
6.125
1700
$1,192.13
$1,083.76
345-3580JF6F
Chrysler Gen III Hemi w/ Stock Size Rod Journals
3.58
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
2.1
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
2.1
6.125
1700
$1,192.13
$1,083.76
345-3900JA6F
Chrysler Gen III Hemi w/ 2.000" Rod Pins
3.9
GEN III Hemi
2
6.125
1700
$1,192.13
$1,083.76
345-3900JB6F
Chrysler Gen III Hemi w/ 2.100" Rod Pins
3.9
GEN III Hemi
2.1
6.125
1600
$1,192.13
$1,083.76
345-4000JB6F
Chrysler Gen III Hemi w/ 2.100" Rod Pins
4
GEN III Hemi
2.1
6.125
1600
$1,192.13
$1,083.76
345-4050JA6F
Chrysler Gen III Hemi w/ 2.000" Rod Pins
4.05
GEN III Hemi
2
6.125
1700
$1,192.13
$1,083.76
345-4080JA6F
Chrysler Gen III Hemi w/ 2.000" Rod Pins
4.08
GEN III Hemi
2
6.125
1700
$1,192.13
$1,083.76
345-4250JA6F
Chrysler Gen III Hemi w/ 2.000" Rod Pins
4.25
GEN III Hemi
2
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
3.9
GEN III Hemi
2.1
6.125
1750
$2,782.50
$2,619.75
345-4050JB8B
Chrysler Gen III Hemi w/ 2.100" Rod Pins
4.05
GEN III Hemi
2.1
6.125
1750
$2,782.50
$2,619.75

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
3.9
GEN III Hemi
2.1
6.125
1750
$2,782.50
$2,619.75
345-4050JB8B
Chrysler Gen III Hemi w/ 2.100" Rod Pins
4.05
GEN III Hemi
2.1
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
3.91
383/400
2.2
6.45
2200
$1,172.80
$1,076.53
383-4150NC6F
383/400 Chrysler - 2.200" Rod Pins
4.15
383/400
2.2
6.45
2200
$1,172.80
$1,076.53
383-4250NC6F
383/400 Chrysler - 2.200" Rod Pins
4.25
383/400
2.2
6.5
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
3.75
426/440
2.2
6.76
2600
$1,172.80
$1,076.53
426-3750ME6F
Big Block Chrysler 8 Bolt Flange
3.75
426/440
2.375
6.76
2600
$1,172.80
$1,076.53
426-4150MC6F
Big Block Chrysler 8 Bolt Flange
4.15
426/440
2.2
6.76
2300
$1,172.80
$1,076.53
426-4150ME6F
Big Block Chrysler 8 Bolt Flange
4.15
426/440
2.375
6.76
2300
$1,172.80
$1,076.53
426-4250MC6F
Big Block Chrysler 8 Bolt Flange
4.25
426/440
2.2
6.76
2300
$1,172.80
$1,076.53
426-4375MC6F
Big Block Chrysler 8 Bolt Flange
4.375
426/440
2.2
6.76
2300
$1,172.80
$1,076.53
426-4500MC6F
Big Block Chrysler 8 Bolt Flange
4.5
426/440
2.2
6.76
2300
$1,172.80
$1,076.53
440-3750ME6F
Big Block Chrysler 6 Bolt Flange
3.75
426/440
2.375
6.76
2600
$1,172.80
$1,076.53
440-4150MC6F
Big Block Chrysler 6 Bolt Flange
4.15
426/440
2.2
6.76
2300
$1,172.80
$1,076.53
440-4150ME6F
Big Block Chrysler 6 Bolt Flange
4.15
426/440
2.375
6.76
2300
$1,172.80
$1,076.53
440-4250MC6F
Big Block Chrysler 6 Bolt Flange
4.25
426/440
2.2
6.76
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
3.25
302
2.1
5.4
1750
$1,067.37
$970.34
302-3400GB6F
302 Ford w/ 302 Width Rod Pins
3.4
302
2.1
5.4
1750
$1,067.37
$970.34
351-3500HB6F-60
351 Ford w/ 2.100" Chevy Rod Pins
3.5
Cleveland
2.1
6
1800
$1,067.37
$970.34
351-3500HB6F-RN
50# Ford Late Model Stock
3.5
Cleveland
2.1
6
1600
$1,220.33
$1,109.39
351-3750HB6F-60
351 Ford w/ 2.100" Chevy Rod Pins
3.75
Cleveland
2.1
6
1800
$1,067.37
$970.34
351-3850HB6F-60
351 Ford w/ 2.100" Chevy Rod Pins
3.85
Cleveland
2.1
6
1800
$1,067.37
$970.34
351-4000HB6F-60
351 Ford w/ 2.100" Chevy Rod Pins
4
Cleveland
2.1
6
1700
$1,067.37
$970.34
351-4000HB6F-62
351 Ford w/ 2.100" Chevy Rod Pins
4
Cleveland
2.1
6.2
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
4.3
460
2.2
6.7
2400
$1,302.33
$1,183.93
460-4500PC6F
460 Ford w/ 2.200" Rod Pins
4.5
460
2.2
6.7
2400
$1,302.33
$1,183.93
460-4600PC6F
460 Ford w/ 2.200" Rod Pins
4.6
460
2.2
6.7
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
2.2
6.535
2300
$1,228.38
$1,116.71
401-4650RC6F
400 Pontiac w/ 2.200" Rod Pins
4.65
400
2.2
6.535
2300
$1,228.38
$1,116.71
401-4250RC6F
400 Pontiac w/ 2.200" Rod Pins
4.25
400
2.2
6.535
2300
$1,228.38
$1,116.71
401-4500RC6F
400 Pontiac w/ 2.200" Rod Pins
4.5
400
2.2
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
4.4
455 Buick
2.2
6.6
2200
$2,782.50
$2,619.75
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