BC Brian Crower 3.2L Stroker Kit for B58 MKV Supra (BC0328LW/BC0329LW)

This 3.2L BC stroker kit for the MKV Toyota Supra B58B30 engine platform incorporates a 100mm stroke, steel billet crank, BC 4340 Pro Series Heavy-Duty connecting rods rated to 1600+ horsepower. Depending on bore size that you decide, the BC kit will take you up to a 3.2L with 82mm bore. As usual, each BC kit features choice of custom CP or JE aluminum forged pistons, 9310 alloy wrist pins and complete ring pack. Built for high horsepower and torque.

Vehicle Fitment:
2020+ Toyota Supra (GR A90 MKV MK5)
B58 Engine

Purchase Includes:
4340 billet crank - 100mm stroke
H-Beam or I-Beam rods (5.8346" c-to-c)
ARP Fasteners (ARP2000 or Custom Age 625+ Rod Bolts)
Custom pistons (choice of bore/compression)
Wrist Pins, Full Ring Pack, and Locks

Notes:
King Race bearings available separately.

Feautres:
• BC 4340 billet steel crankshaft (100mm stroke).
• BC 4340 Pro Series connecting rods w/ARP625+ fasteners.
• CP or JE aluminum forged pistons (any bore size, any compression ratio).
• 9310 Series upgraded wrist pins standard.
• Ductile iron plasma top rings, tapered second ring, low tension oil rings.
• Fully system balanced and ready to install. (50% deposit required)

About BC Crankshafts:
BC crankshafts are crafted from aerospace-grade 4340 steel billet material and CNC machined on state-of-the-art, 5-axis Mazak Integrex 300-IV CNC machines to precise tolerances (.0001"). Each crankshaft features large radius journals for added rigidity in high horsepower, high boost, and high RPM applications. Gun-drilled and CNC-ground oil holes have a smooth surface for enhanced oiling, tear-dropped for added oil scoop, cross-drilled for priority main feeding to the rods, and micro-polished to a mirror finish for optimal bearing lubricity. All cranks undergo stress relief, shot peening, magnaflux inspection, and nitriding (multi-step heat treatment) for ultimate performance. Fully profiled counterweights are designed to reduce windage through the crankcase, decreasing oil resistance for improved RPM potential.

About BC Connecting Rods:
BC connecting rods are CNC machined from aerospace-grade 4340 steel billet and available in either the European-influenced H-beam or the traditional I-beam design (for certain applications). Each rod features a deep, double-ribbed cap that keeps the big end housing bore true at extended RPMs and ensures uniform bearing crush, providing proper clearances for superior oil supply and maximum load-carrying capacity. H-beam rods have a deep radial groove pin bushing and oil holes at 5 and 7 o'clock (the beam acts as a trough) for critical lubrication to the wrist pin area. I-beam rods have an oil hole at the 12 o'clock position to keep the pin end bore true at high boost. Available with ARP2000 fasteners (rated to 210,000 psi) or the ultimate fastener, ARP's Custom Age 625+ (rated to 280,000 psi).

Piston Options:
Choose from top piston brands such as CP or JE in any desired bore size and compression ratio. Both brands manufacture custom BC stroker pistons from 2618 T6 high tensile strength forged aluminum. These forgings are computer-designed for strength and minimal weight. Each piston diameter is CNC machined to ensure optimal accuracy and superior grain flow in the forging process. 3D modeling software and rigorous Finite Element Analysis ensure that your pistons are manufactured to be the strongest and lightest possible for your application. Your custom pistons feature tighter clearances, reduced noise, better ring seal, and overall improved durability. Standard features include pin fit, carbon steel wrist pins, and spiral locks or rail supports depending on the application. Added features include upgraded 9310 alloy wrist pins for reduced flex, lateral gas ports to assist in ring sealing, skirt and top coatings, and lightweight design.

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