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

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

sku: 1UHGF | mpn: BC5911
Regular price $2,550.00
Regular price $2,550.00 Sale price $2,550.00
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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 bobweight:

• BC Rod (BC6911 or BC6912): 428/162g
• CP Piston (93mm bore): 368g
• CP Pin (9310, .220” wall: 120g
• CP Ring Pack: 29g
• ACL Bearings: 30g
• CP Locks: 2g
Stroke 72.5mm
Rod Journal 45mm
Main Journal 40.98mm
Weight 19.2 Lbs
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