CRANKSHAFTS

BC5321LW - Toyota B58B30 Crankshaft - 100mm Stroke

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (mult...

4340 billet. 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. Stroke 100mm Rod Journal 50mm Main Journal 55mm Weight 52 Lbs

BC5349 - Scion 2AZFE Crankshaft - 4340 Billet - 102mm Stroke

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (mult...

4340 billet. 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. Stroke 102mm Rod Journal 48mm Main Journal 55mm Weight 38.4 Lbs

BC5350-95 - Toyota 3SGTE Crankshaft - 4340 Billet - 95mm Stroke

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (mult...

4340 billet. 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. Stroke 95mm Rod Journal 48mm Main Journal 55mm Weight 36.6 Lbs

BC5350 - Toyota 3SGTE Crankshaft - 4340 Billet - 91mm Stroke

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (mult...

4340 billet. 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. Stroke 91mm Rod Journal 48mm Main Journal 55mm Weight 36.6 Lbs

BC5355LW-105 - Toyota 1FZFE LightWeight Crankshaft - 4340 Billet - 105mm Stroke

4340 billet LightWeight. All cranks are stress relieved, shot peened, magna flux inspected and ni...

4340 billet LightWeight. 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. Stroke 105mm Rod Journal 57mm Main Journal 69mm Weight 76.9 Lbs

BC5355LW - Toyota 1FZFE LightWeight Crankshaft - 4340 Billet - 101mm Stroke

4340 billet LightWeight. All cranks are stress relieved, shot peened, magna flux inspected and ni...

4340 billet LightWeight. 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. Stroke 101mm Rod Journal 57mm Main Journal 69mm Weight 76.2 Lbs

BC5359 - Toyota 4AGE Crankshaft - 4340 Billet - 83mm Stroke

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (mult...

4340 billet. 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. Stroke 83mm Rod Journal 42mm Main Journal 48mm Weight 25.2 Lbs

BC5369 - Toyota 1GRFE Crankshaft - 4340 Billet - 103mm Stroke, Fully Balanced

4340 billet, balanced. All cranks are stress relieved, shot peened, magna flux inspected and nitr...

4340 billet, balanced. 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. Stroke 103mm Rod Journal 56mm Main Journal 72.10mm Weight 50.2 Lbs

BC5369U - Toyota 1GRFE Crankshaft - 4340 Billet - 103mm Stroke, Self Balanced

4340 billet, unbalanced. All cranks are stress relieved, shot peened, magna flux inspected and ni...

4340 billet, unbalanced. 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. Stroke 103mm Rod Journal 56mm Main Journal 72.10mm Weight 50.1 Lbs

BC5456-LS7 - Chevrolet LS7 Wet Sump Crankshaft - 4340 Forging - 4.000" Stroke, Self Balanc...

LS Series for dry sump snout, 4340 non-twist forging, unbalanced for the GM LS7 (dry sump). All c...

LS Series for dry sump snout, 4340 non-twist forging, unbalanced for the GM LS7 (dry sump). 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. Add $250 for precision balancing with provided bobweights. Stroke 4.000" Rod Journal 2.0987" Main Journal 2.558"

BC5456 - Chevrolet LS Series Wet Sump Crankshaft - 4340 Forging - 4.000" Stroke, Self Bala...

LS Series for wet sump snout, 4340 non-twist forging, unbalanced. All cranks are stress relieved,...

LS Series for wet sump snout, 4340 non-twist forging, unbalanced. 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. Add $250 for precision balancing. Stroke 4.000" Rod Journal 2.0987" Main Journal 2.558"

BC5458-LS7 - Chevrolet LS7 Dry Sump Crankshaft - 4340 Forging - 4.125" Stroke, Self Balanc...

LS Series for dry sump snout, 4340 non-twist forging, unbalanced for the GM LS7 (dry sump). All c...

LS Series for dry sump snout, 4340 non-twist forging, unbalanced for the GM LS7 (dry sump). 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. Add $250 for precision balancing with provided bobweights. Stroke 4.125" Rod Journal 2.0987" Main Journal 2.558"

BC5458 - Chevrolet LS Series Wet Sump Crankshaft - 4340 Forging - 4.125" Stroke, Self Bala...

LS Series for wet sump snout, 4340 non-twist forging, unbalanced. All cranks are stress relieved,...

LS Series for wet sump snout, 4340 non-twist forging, unbalanced. 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. Add $250 for precision balancing. Stroke 4.125" Rod Journal 2.0987" Main Journal 2.558"

BC5459-LS7 - Chevrolet LS7 Dry Sump Crankshaft - 4340 Forging - 4.250" Stroke, Self Balanc...

LS Series for dry sump snout, 4340 non-twist forging, unbalanced for the GM LS7 (dry sump). All c...

LS Series for dry sump snout, 4340 non-twist forging, unbalanced for the GM LS7 (dry sump). 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. Add $250 for precision balancing with provided bobweights. Stroke 4.250" Rod Journal 2.0987" Main Journal 2.558"

BC5459 - Chevrolet LS Series Wet Sump Crankshaft - 4340 Forging - 4.250" Stroke, Self Bala...

LS Series for wet sump snout, 4340 non-twist forging, unbalanced. All cranks are stress relieved,...

LS Series for wet sump snout, 4340 non-twist forging, unbalanced. 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. Add $250 for precision balancing with provided bobweights. Stroke 4.250" Rod Journal 2.0987" Main Journal 2.558"

BC5509 - Hyundai G6DA V6 Crankshaft - 4340 Billet - 93mm Stroke, Fully Balanced

4340 billet steel. All cranks are stress relieved, shot peened, magna flux inspected and nitrided...

4340 billet steel. 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. Stroke 93mm Rod Journal 55mm Main Journal 69mm Weight 39.4 Lbs

BC5509U - Hyundai G6DA V6 Crankshaft - 4340 Billet - 93mm Stroke, Self Balanced

4340 billet steel. All cranks are stress relieved, shot peened, magna flux inspected and nitrided...

4340 billet steel. 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. Stroke 93mm Rod Journal 55mm Main Journal 69mm Weight 39.4 Lbs

BC5605 - Subaru EJ205 (WRX) Crankshaft - 4340 Billet - 75mm Stroke

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (mult...

4340 billet. 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. Stroke 75mm Rod Journal 52mm Main Journal 60mm Weight 19.2 Lbs

BC5609 - Subaru EJ205 (WRX) Crankshaft - 4340 Billet - 79mm Stroke

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (mult...

4340 billet. 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. Stroke 79mm Rod Journal 52mm Main Journal 60mm Weight 19.2 Lbs

BC5629 - Subaru EJ275 (STi) Crankshaft - 4340 Billet - 83mm Stroke

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (mult...

4340 billet. 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. Stroke 83mm Rod Journal 52mm Main Journal 60mm Weight 18.9 Lbs

BC5789 - BMW BMW N54B30 Crankshaft - 4340 Billet - 93.6mm Stroke

4340 billet. Fits BMW N54/M54B30 engine blocks. All cranks are stress relieved, shot peened, magn...

4340 billet. Fits BMW N54/M54B30 engine blocks. 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. Stroke 93.6mm Rod Journal 49.98mm Main Journal 55.97mm Weight 62 Lbs

BC5799 - BMW M50B25 Crankshaft - 4340 Billet - 95.6mm Stroke

4340 billet. Fits M50B25, M52B25, S52B32 engine blocks. All cranks are stress relieved, shot peen...

4340 billet. Fits M50B25, M52B25, S52B32 engine blocks. 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. Stroke 95.6mm Rod Journal 45mm Main Journal 60mm Weight 59.7 Lbs

BC5900 - Polaris XP 1000 (2014-23) Stock Stroke Crankshaft 73.5mm w/180° Crank Pin

Stock stroke 73.5mm XP 1000 (180° pin), CNC machined from 4340 billet round bar. All cranks are s...

Stock stroke 73.5mm XP 1000 (180° pin), CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods. No balancing required prior to installation due to 180° offset pins. Stroke 73.5mm Rod Journal 40.93mm Main Journal 40.98mm Weight 19.2 ...

BC5901 - Polaris XP 1000 (2014-23) Stroker Crankshaft 78mm w/180° Crank Pin

78mm XP 1000 (180° pin) Stroker (+4.5mm) CNC machined from 4340 billet round bar. All cranks are ...

78mm XP 1000 (180° pin) Stroker (+4.5mm) CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods. No balancing required prior to installation due to 180° offset pins. Stroke 78mm Rod Journal 40.93mm Main Journal 40.98mm Weight 19.2 L...

BC5905 - Polaris XPEDITION XP1000 (23-up) Stroker Crankshaft 78mm w/180° Crank Pin

New Polaris XPEDITION crankshafts in 78mm stroke (180° pin) Stroker (+4.5mm) CNC machined from 43...

New Polaris XPEDITION crankshafts in 78mm stroke (180° pin) Stroker (+4.5mm) CNC machined from 4340 billet round bar. These cranks are purpose built for the non-stator side snout and feature the new PTO design snout in the 2024-up XP1000 engine. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings usin...

BC5910 - Fully Balanced Polaris XP Turbo (16-up) Stock Stroke Crankshaft 68mm w/270° Crank...

68mm XP Turbo (270° pin) Stock Stroke - This crank comes fully system balanced to customer bobwei...

68mm XP Turbo (270° pin) Stock Stroke - This crank comes fully system balanced to customer bobweight specifications. CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods. These cranks are fully system balanced to the following bobweight: •...

BC5911-75 - Fully Balanced Polaris XP Turbo (16-up) Stroker Crankshaft 75mm w/270° Crank Pin

75mm XP Turbo (270° pin) Stock Stroke - This crank comes fully system balanced to customer bobwei...

75mm XP Turbo (270° pin) Stock Stroke - This crank comes fully system balanced to customer bobweight specifications. CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods. These cranks are fully system balanced to the following bobweight: •...

BC5911 - Fully Balanced Polaris XP Turbo (16-up) Stroker Crankshaft 72.5mm w/270° Crank Pin

72.5mm XP Turbo (270° pin) Stroker (+4.5mm) - This crank comes fully system balanced to customer ...

72.5mm XP Turbo (270° pin) Stroker (+4.5mm) - This crank comes fully system balanced to customer bobweight specifications. CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods. These cranks are fully system balanced to the following bobwei...

BC5917 - Polaris Pro R (22-up) 78mm Stroke Crankshaft

78mm Pro R Stroker Crank - Standard weight design for boosted applications. CNC machined from 434...

78mm Pro R Stroker Crank - Standard weight design for boosted applications. CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods.  Stroke 78mm Rod Journal 45mm Main Journal 52mm Weight 34 Lbs

BC5918 - Polaris Pro R (22-up) 41.40mm Destroker Crankshaft

Destroked 41.40mm Pro R Stroker Crankshaft. Looking to get your 4cyl down to 1200cc or lower disp...

Destroked 41.40mm Pro R Stroker Crankshaft. Looking to get your 4cyl down to 1200cc or lower displacement, this BC destroked design will get you there. CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights. Stroke 41.40mm Rod Journal 45mm Main Journal 52mm Weight 34 Lbs

BC5930 - Balanced Can-Am X3 / ROTAX 900 ACE (17-up) EN40 Billet Crankshaft (69.7mm Stroke)

The BC stock stroke billet cranks, due to the counterweight correct design, do not require any he...

The BC stock stroke billet cranks, due to the counterweight correct design, do not require any heavy-metal to balance for aftermarket rods & pistons. Made from EN40, features a large radius snout for maximum horsepower capability. 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 ...

BC5932 - CAN-AM X3 (17-up) EN40B BILLET CRANKSHAFT (73.5mm STROKE)

EN40B billet, large radius snout with added .040" O.D. snout diameter. Good for short course, des...

EN40B billet, large radius snout with added .040" O.D. snout diameter. Good for short course, desert racing, even Ultra 4 and duner applications. Spool that bigger than stock turbo up quicker with a BC stroker crankshaft, CNC machined from EN40B billet round bar, the hardest material available with through hardening capabilities not possible on the standard 4340 steel. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate perfo...

BC5933 - CAN-AM X3 (17-up) Large Radius EN40B BILLET CRANKSHAFT (73.5mm STROKE)

EN40B billet, large radius snout with an added .080" O.D. snout diameter and no radius around the...

EN40B billet, large radius snout with an added .080" O.D. snout diameter and no radius around the timing chain area to handle the most aggressive clutch and anti-lag setups. Builds full boost 2000 rpm sooner than stock stroke with unlimited boost capabilities. CNC machined from EN40B billet round bar, the hardest material available with through hardening capabilities not possible on standard 4340 steel. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step...

BC5951 - YAMAHA YXZ/SIDEWINDER (16-up) BILLET CRANKSHAFT (71mm STROKE)

These cranks are precision balanced if ordered as a BC stroker kit, bobweights required if using...

These cranks are precision balanced if ordered as a BC stroker kit, bobweights required if using own piston and/or rod combo. 4340 billet crankshaft in +4.8mm stroke (71mm). NOW MUST USE WITH  YXZ OIL PUMP SPROCKET. 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. These c...