This Brian Crower performance crankshaft is an engine-specific component identified by exact manufacturer part number BC5218. Complete vehicle YMM is not assigned without exact part-number evidence, so match the engine family and generation, dimensions, companion components, and every manufacturer application note before ordering.

Key Features

• 4340 Chromoly Billet Construction: Machined from solid billet bar stock, not cast, for significantly higher fatigue strength under boost and high RPM loads.
• 96mm Stroke: Increases displacement over the stock 90mm KA24DE crank for more low end torque and additional power potential.
• CNC Precision Machining: Machined to Brian Crower’s tight dimensional tolerances for consistent fitment and balance.
• Large Radius Journals: Reduces stress concentration at the fillet area, a common failure point on stock and reground cranks.
• Nitrided Surface Treatment: Improves surface hardness and wear resistance on the main and rod journals.
• Fully Counterweighted Design: Reduces vibration and improves rotating assembly balance compared to lightweight or partial counterweight designs.

Fitment

Specifications

What’s Included

One new Brian Crower performance crankshaft identified by manufacturer part number BC5218. Supporting engine components are included only when expressly stated for this exact part number.

About Brian Crower

Brian Crower develops camshafts, connecting rods, crankshafts, valvetrain components, gaskets, and related engine internals for performance applications. Selection and assembly remain exact-engine, exact-dimension, and exact-part-number specific.

Related Brian Crower Products

• Brian Crower Crankshaft – LightWeight Toyota B58B30 Crankshaft / 100mm Stroke / 4340 Billet
• Brian Crower Connecting Rods – Nissan KA24DE – 6.495 – bROD w/ARP2000 Fasteners
• Brian Crower Gaskets – Nissan VQ35DE 96mm Bore (BC Made in Japan)

Browse the Brian Crower collection for related engine components.

Frequently Asked Questions

How do I confirm this Brian Crower part matches my engine?
Match the exact Brian Crower part number, engine family and generation, dimensions, required companion components, and every manufacturer application note. Do not select an internal engine part from a vehicle model or engine nickname alone.

What should be measured before installation?
Confirm every applicable journal, bore, stem, seat, spring, retainer, piston-to-valve, bearing, fastener, and running clearance against the current Brian Crower instructions and the engine builder’s specifications before final assembly.

Are all supporting parts included?
Only components expressly listed for this exact manufacturer part number are included. Bearings, pistons, rings, springs, retainers, locks, guides, seals, gaskets, fasteners, fluids, tools, and tuning may be separate.

Installation Instructions

Follow the current Brian Crower instructions, engine builder specifications, and factory service information for this exact part number. Work in a clean environment, inspect and measure all mating components, verify required clearances, use the specified lubricants and fasteners, set valve timing and torque values correctly, rotate the assembly by hand, establish oil pressure before startup, and complete professional calibration when required. Professional engine assembly is strongly recommended.