BC Brian Crower Crankshaft for B58 MKV Supra (BC5320LW/BC5321LW)
Brian Crower offers stock stroke and 100mm stroke 4340 billet crankshafts. Each crankshaft undergoes stress relief, shot peening, magnaflux inspection, and nitriding (a multi-step heat treatment) to ensure peak performance. Fully profiled counterweights are designed to minimize windage through the crankcase, reducing oil resistance and enhancing RPM potential.
Vehicle Fitment:
2020+ Toyota Supra (GR A90 MKV MK5)
B58 Engine
Purchase Includes:
(1) 4340 Billet Crankshaft
| Part Number: | Application: | Crankshaft Stroke: | Rod Journal: | Main Journal: | Weight: |
| BC5320LW | B58 Toyota Supra | 94.6mm | 50mm | 52mm | 52 lbs |
| BC5321LW | B58 Toyota Supra | 100mm | 50mm | 52mm | 52 lbs |
Notes:
Images are for reference
More Info:
BC crankshafts are crafted from premium aerospace-grade 4340 steel billet. They are CNC machined on advanced 5-axis Mazak Integrex 300-IV machines to exacting tolerances of .0001". Each crankshaft features large radius journals to enhance rigidity for high horsepower, high boost, and high RPM applications. Gun-drilled and CNC-ground oil holes offer smooth surfaces for improved oiling, with tear-dropped designs for added oil scoop and cross-drilled holes for priority main feeding to the rods. Micro-polished to a mirror finish for optimal bearing lubricity, all crankshafts undergo stress relief, shot peening, magnaflux inspection, and nitriding (a multi-step heat treatment) for superior performance. Fully profiled counterweights reduce windage in the crankcase, lowering oil resistance for better RPM potential.
Description
Brian Crower offers stock stroke and 100mm stroke 4340 billet crankshafts. Each crankshaft undergoes stress relief, shot peening, magnaflux inspection, and nitriding (a multi-step heat treatment) to ensure peak performance. Fully profiled counterweights are designed to minimize windage through the crankcase, reducing oil resistance and enhancing RPM potential.
Vehicle Fitment:
2020+ Toyota Supra (GR A90 MKV MK5)
B58 Engine
Purchase Includes:
(1) 4340 Billet Crankshaft
| Part Number: | Application: | Crankshaft Stroke: | Rod Journal: | Main Journal: | Weight: |
| BC5320LW | B58 Toyota Supra | 94.6mm | 50mm | 52mm | 52 lbs |
| BC5321LW | B58 Toyota Supra | 100mm | 50mm | 52mm | 52 lbs |
Notes:
Images are for reference
More Info:
BC crankshafts are crafted from premium aerospace-grade 4340 steel billet. They are CNC machined on advanced 5-axis Mazak Integrex 300-IV machines to exacting tolerances of .0001". Each crankshaft features large radius journals to enhance rigidity for high horsepower, high boost, and high RPM applications. Gun-drilled and CNC-ground oil holes offer smooth surfaces for improved oiling, with tear-dropped designs for added oil scoop and cross-drilled holes for priority main feeding to the rods. Micro-polished to a mirror finish for optimal bearing lubricity, all crankshafts undergo stress relief, shot peening, magnaflux inspection, and nitriding (a multi-step heat treatment) for superior performance. Fully profiled counterweights reduce windage in the crankcase, lowering oil resistance for better RPM potential.
