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CHEVROLET LS1, LS3 4340 FORGED CRANKSHAFTS - 6 COUNTERWEIGHT
BC 4340 forged LS crankshafts are available in 6 counterweight forging with a wet sump design snout (LS1, LS3). CNC machined on state of the art, 5 axis Mazak Integrex 300-IV CNC machines to exacting tolerances (.0001"). Rated to 1600whp, every crankshaft features large radius journals that add rigidity for high horsepower, high boost, high rpm applications. Gun drilled, CNC ground oil holes feature a smooth surface for extra oiling, tear dropped for added oil scoop, cross drilled for priority main feeding to the rods and micro polished to a mirror finish for optimum bearing lubricity. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced windage through the crankcase creating less oil resistance for better rpm potential. BC also offers a Micro Polish finish that not only increases oil shedding, while decreasing oil foaming and parasitic losses but this polishing process enhances the ion nitriding, increasing overall tensile strength by 10% over the standard BC crankshafts. |
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Part # |
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Description # |
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Stroke |
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Crank Pin |
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Main |
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Buy Now |
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Status |
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| BC5456-4000-6CW |
CRANKSHAFT - LS3 Chevrolet - 48-54 lbs - 6 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
 |
In-Stock |
|
| BC5456-4125-6CW |
CRANKSHAFT - LS3 Chevrolet - 48-54 lbs - 6 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5456-4250-6CW |
CRANKSHAFT - LS3 Chevrolet - 48-54 lbs - 6 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
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CHEVROLET LS 4340 FORGED CRANKSHAFTS - 8 COUNTERWEIGHT
BC LS Chevrolet cranks are available in an 8 counterweight forging in your choice of wet sump or dry sump snout design. All feature the same machining standards as the other BC crankshafts. Rated to 1700whp. |
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Part # |
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Description # |
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Stroke |
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Crank Pin |
|
Main |
|
Buy Now |
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Status |
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|
| BC5457-4000-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5457-4125-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5467-4250-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458-4000-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458-4125-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458-4250-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
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|
|
CHEVROLET LS 4340 billet CRANKSHAFTS - 8 COUNTERWEIGHT
BC LS Chevrolet cranks are available in an 8 counterweight, 4340 steel billet for power levels up to 3000+whp for big boost applications. Choose from wet sump or dry sump snout design. All billet cranks feature the same machining standards as the other BC crankshafts and include BC's Micro Polish finish for less windage. Rated to 3000+whp. |
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|
Part # |
|
Description # |
|
Stroke |
|
Crank Pin |
|
Main |
|
Buy Now |
|
Status |
|
|
| BC5457B-4000-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5457B-4125-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5457B-4250-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458B-4000-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458B-4125-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458B-4250-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
|
|
|
CHEVROLET LS1, LS3 4340 FORGED CRANKSHAFTS - 6 COUNTERWEIGHT
BC 4340 forged LS crankshafts are available in 6 counterweight forging with a wet sump design snout (LS1, LS3). CNC machined on state of the art, 5 axis Mazak Integrex 300-IV CNC machines to exacting tolerances (.0001"). Rated to 1600whp, every crankshaft features large radius journals that add rigidity for high horsepower, high boost, high rpm applications. Gun drilled, CNC ground oil holes feature a smooth surface for extra oiling, tear dropped for added oil scoop, cross drilled for priority main feeding to the rods and micro polished to a mirror finish for optimum bearing lubricity. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced windage through the crankcase creating less oil resistance for better rpm potential. BC also offers a Micro Polish finish that not only increases oil shedding, while decreasing oil foaming and parasitic losses but this polishing process enhances the ion nitriding, increasing overall tensile strength by 10% over the standard BC crankshafts. |
|
|
Part # |
|
Description # |
|
Stroke |
|
Crank Pin |
|
Main |
|
Buy Now |
|
Status |
|
|
| BC5456-4000-6CW |
CRANKSHAFT - LS3 Chevrolet - 48-54 lbs - 6 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5456-4125-6CW |
CRANKSHAFT - LS3 Chevrolet - 48-54 lbs - 6 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5456-4250-6CW |
CRANKSHAFT - LS3 Chevrolet - 48-54 lbs - 6 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
|
|
|
CHEVROLET LS 4340 FORGED CRANKSHAFTS - 8 COUNTERWEIGHT
BC LS Chevrolet cranks are available in an 8 counterweight forging in your choice of wet sump or dry sump snout design. All feature the same machining standards as the other BC crankshafts. Rated to 1700whp. |
|
|
Part # |
|
Description # |
|
Stroke |
|
Crank Pin |
|
Main |
|
Buy Now |
|
Status |
|
|
| BC5457-4000-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5457-4125-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5467-4250-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458-4000-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458-4125-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458-4250-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
|
|
|
CHEVROLET LS 4340 billet CRANKSHAFTS - 8 COUNTERWEIGHT
BC LS Chevrolet cranks are available in an 8 counterweight, 4340 steel billet for power levels up to 3000+whp for big boost applications. Choose from wet sump or dry sump snout design. All billet cranks feature the same machining standards as the other BC crankshafts and include BC's Micro Polish finish for less windage. Rated to 3000+whp. |
|
|
Part # |
|
Description # |
|
Stroke |
|
Crank Pin |
|
Main |
|
Buy Now |
|
Status |
|
|
| BC5457B-4000-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5457B-4125-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5457B-4250-8CW |
CRANKSHAFT - LS7 Chevrolet - 50-56 lbs - 8 CW, DRY SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458B-4000-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.000" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458B-4125-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.125" |
2.100" |
2.559" |
|
In-Stock |
|
| BC5458B-4250-8CW |
CRANKSHAFT - LS1, LS3 Chevrolet - 50-56 lbs - 8 CW, WET SUMP SNOUT w/58 TOOTH RELUCTOR |
4.250" |
2.100" |
2.559" |
|
In-Stock |
|
|
|
619.749.9018 ph
619.749.9128 fx
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| Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved.. |
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WARNING: This product can expose you to chemicals,
including Chromium (hexavalent compounds), lead and lead
compounds, which are known to the State of California to
cause cancer, birth defects or other reproductive harm. For
more information, visit www.p65warnings.ca.gov |
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