We offer a wide range of top quality 4340 forged steel Molnar LS crankshaft models to choose from. The LS stroker crank models listed here are for most LS engines not just the LS1. We have LS stroker cranks with your choice of reluctor ring tooth counts to match most engine combinations.We have LS crank models with either a 24 tooth or 58 tooth reluctor rings. The crankshafts are shipped with the reluctor ring installed.
The special LS7 crankshaft models include a longer snout to work properly with the OEM Chevy dry sump oiling system used on the LS7 and LS9 engines.
Molnar Technologies superior LS crankshafts are extremely strong, precision machined high performance parts and can be used in everything from a high performance street car to an all out racing vehicle. These cranks are often selected for use in not only normally aspirated engines but also big nitrous, supercharged, turbocharged and even twin turbocharged LS engines.
We have LS stock stroke and LS stroker cranks for the following Chevy and GM LS engine models:
- LS1
- LS2
- LS3
- LS6
- LS7
- LS9
- LSX
Check out the many premium features included with each Molnar LS crankshaft and order today to get started on your next engine project.
Forged Steel Molnar LS Crankshaft Features
- 4340 forged premium steel construction
- Nitrided main and rod journal surfaces for superior wear resistance
- Multi stage heat treatment
- Precision machined to extremely tight tolerances
- Material properties are monitored closely to insure optimum performance
- Counterweight placement designed for improved crankshaft performance
- .125" radius on both the connecting rod and main journals for increased strength
- Precision ground and micro-polished journals
- Chamfered oil holes for improved oiling
- Indexed for correct stroke
4340 Forged Steel Molnar LS1 LS2 LS3 LS6 LS7 and LS9 Crankshaft Specs
- Stroke Crankshaft stroke length
- Notes Additional information about specific applications
- Pin Crank rod pin / rod journal diameter
- Main Main journal size
- Min Rod Recommended minimum rod length
- Bob Approximate bob weight
Molnar LS Crankshaft Specifications and Price |
||||||
| Part # and Price | Stroke | Notes | Pin | Main | Min Rod |
Bob |
|---|---|---|---|---|---|---|
| 346-3622LB6F-610 24
|
3.622 | GM LS Stock stroke crankshaft 3.622 with 24 tooth ring | 2.100 | LS | 6.100 | 1800 |
| 346-3622LB6F-610 58
|
3.622 | GM LS Stock stroke crankshaft 3.622 with 58 tooth ring | 2.100 | LS | 6.100 | 1800 |
|
346-3622LB8B-24
|
3.622 |
LS billet steel Extreme Duty 8 counterweight crank 3.622 stroke LS Billet Crank Note: 8 counterweight cranks are also referred to as LS fully counterweighted or LS center counter weighted. |
2.100 | LS | 6.125 | 1750 |
|
346-3622LB8B-58
|
3.622 |
LS billet steel Extreme Duty 8 counterweight crank 3.622 stroke LS Billet Crank Note: 8 counterweight cranks are also referred to as LS fully counterweighted or LS center counter weighted. |
2.100 | LS | 6.125 | 1750 |
|
346-3750LB6F-610-24
|
3.750 | GM LS stroker crankshaft 3.750 with 24 tooth ring | 2.100 | LS | 6.100 | 1800 |
|
346-3750LB6F-610-58
|
3.750 | GM LS stroker crankshaft 3.750 with 58 tooth ring | 2.100 | LS | 6.100 | 1800 |
|
346-3900LB6F-610-24
|
3.900 | 3.900" Stroke GM LS Series Crank with 24 tooth ring |
2.100 | LS | 6.125 | 1800 |
|
346-3900LB6F-610-58
|
3.900 | 3.900" Stroke GM LS Series Crank with 58 tooth ring |
2.100 | LS | 6.125 | 1800 |
| 346-4000LB6F-610 24
|
4.000 | GM LS Series 4.000" Stroker Crank with 24 tooth ring |
2.100 | LS | 6.100 | 1800 |
| 346-4000LB6F-610 58
|
4.000 | GM LS Series 4.000" Stroker Crank with 58 tooth ring |
2.100 | LS | 6.100 | 1800 |
|
346-4000LB8B-24
|
4.000 |
Extra Heavy Duty LS billet steel 8 counterweight crank 4.000 stroke LS Billet Crank with 24 tooth ring for use in brutal high output applications Note: 8 counterweight cranks are also referred to as fully counterweighted or center counter weighted. |
2.100 | LS | 6.125 | 1750 |
|
346-4000LB8B-58
|
4.000 |
Extra Heavy Duty LS billet steel 8 counterweight crank 4.000 stroke LS Billet Crank Note: 8 counterweight cranks are also referred to as fully counterweighted or center counter weighted. |
2.100 | LS | 6.125 | 1750 |
| 346-4125LB6F-610 24
|
4.125 | GM LS 4.125 Stroker Crank with 24 tooth ring |
2.100 | LS | 6.100 | 1800 |
| 346-4125LB6F-610 58
|
4.125 | GM LS 4.125 Stroker Crank with 58 tooth ring |
2.100 | LS | 6.100 | 1800 |
|
346-4250LB6F-610 24
|
4.250 | 4.250 Stroke GM LS Series Crank with 24 tooth ring |
2.100 | LS | 6.125 | 1800 |
|
346-4250LB6F-610 58
|
4.250 | 4.250 Stroke GM LS Series Crank with 58 tooth ring |
2.100 | LS | 6.125 | 1800 |
Chevrolet LS9 and LS7 Crankshaft with Long Dry Sump Snout |
||||||
| 346-4000LB6F-LS7
|
4.000 | GM LS7, LS9 Crankshaft 4.000" Stroker crank, with dry sump snout and 58 tooth ring | 2.100 | LS | 6.100 | 1800 |
| 346-4100LB6F-LS7
|
4.100 | GM LS7, LS9 Crank 4.100" Stroker crankshaft with dry sump snout and 58 tooth ring | 2.100 | LS | 6.100 | 1800 |
Check out our selection of matching Molnar LS rods and get a set of connecting rods that will be the perfect match for your new crankshaft. In addition to the standard series H beam rods we also have the Molnar LS Power Adder and LS Power Adder Plus rods available for extreme high horsepower engines.
If you do not find the Molnar LS crankshaft you need, please contact us for assistance. New models are constantly in development so we may have cranks available that have not been added to this site yet.
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