What is the main advantage of a 4340 billet crankshaft?

A 4340 billet crankshaft starts as a solid block of steel that is precisely machined. This results in a stronger, more consistent internal structure compared to forged or cast crankshafts, making it better suited for high-stress applications.

What does the 73.7mm stroke signify for my engine?

The stroke is the distance the piston travels from the bottom of its travel to the top. A 73.7mm stroke increases the engine's displacement, which can lead to more power and torque when combined with other performance modifications.

What other components are typically needed when installing a new crankshaft?

When installing a new crankshaft, you'll generally need new main and rod bearings, piston rings, and often a professional balancing service to ensure the rotating assembly is properly balanced for smooth operation and longevity.

Brian Crower RB26/RB25 Crankshaft 73.7mm Stroke 4340 Billet

Name: Brian Crower Crankshaft - Nissan RB26/RB25 73.7mm Stroke 4340 Billet
Brand: Brian Crower
SKU: brian-crower-brian-crower-crankshaft-nissan-rb26-rb25-73-7mm-stroke-4340-billet-t14-308156
Price: 4778.55 USD
Availability: BackOrder

Brian Crower Crankshaft - Nissan RB26/RB25 73.7mm Stroke 4340 Billet

$4778.55

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Brian Crower 4340 billet crankshaft for Nissan RB26/RB25 engines with a 73.7mm stroke.

Key Features

Fits Nissan RB26 and RB25 engines.
Features a 73.7mm stroke for increased displacement.
Constructed from 4340 billet steel for strength and durability.
Designed for high-performance and demanding engine builds.

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Product Details

Brian Crower is well-known for making strong internal engine components, and this crankshaft for the Nissan RB26 and RB25 engines is a prime example. If you're building a high-performance RB engine, a solid crankshaft is the foundation you need. This piece is designed to handle the demands of serious builds, offering a 73.7mm stroke to increase displacement and potential power output.

Crafted from 4340 billet steel, this crankshaft is built for durability and reliability under high stress. The billet construction means it starts as a solid block of material, which is then precisely machined to shape. This process results in a stronger, more consistent grain structure compared to forged or cast cranks, making it ideal for boosted applications or high-RPM use. The 73.7mm stroke is a common choice for RB enthusiasts looking to balance increased displacement with reliable engine geometry.

When you're investing in an engine build of this caliber, using a well-built crankshaft like this Brian Crower unit is crucial for long-term performance and preventing costly failures. Ensure you have all the necessary supporting components, such as appropriate bearings, piston rings, and balancing services, to complete your engine assembly.