Specifications
- Brand
- Brian Crower
- Part #
- BC5239

Brian Crower Crankshaft - Nissan RB26/RB25 79mm Stroke 4340 Billet
$4778.55
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Brian Crower Crankshaft - Nissan RB26/RB25 79mm Stroke 4340 Billet
Key Features
- Fits Nissan RB26 and RB25 engines.
- Features a 79mm stroke for increased displacement.
- Constructed from 4340 billet steel for exceptional strength and durability.
- Billet construction offers a superior grain structure compared to forged or cast cranks.
- Designed to withstand high RPMs and significant cylinder pressures.
Product Details
If you're building a high-performance Nissan RB26 or RB25 engine, a strong crankshaft is the foundation of your build. This Brian Crower crankshaft is designed to handle the demands of serious power, offering a 79mm stroke for increased displacement and improved torque characteristics. It's a critical component for anyone looking to push their RB engine beyond stock capabilities, whether for track use or a powerful street machine.
Crafted from 4340 billet steel, this crankshaft is built for extreme durability. The billet construction means it starts as a solid block of steel, which is then precisely machined to shape. This process results in a much stronger and more consistent grain structure compared to forged or cast cranks, making it highly resistant to flex and fatigue under high RPMs and significant cylinder pressures. The 79mm stroke is a popular choice for RB enthusiasts seeking a balance between increased displacement and maintaining good rod angle for reliability. Brian Crower is known for producing well-built internal engine components, and this crankshaft is no exception, offering a solid option for your custom engine build.
When installing a performance crankshaft like this, it's essential to ensure all supporting components are up to the task. This includes proper balancing of the rotating assembly, using high-quality bearings, and ensuring your engine block is prepped correctly. Always refer to the manufacturer's installation instructions for specific details regarding clearances, lubrication, and assembly procedures to ensure the longevity and performance of your new engine.
Specifications
- Brand
- Brian Crower
- Manufacturer Part #
- BC5239
Frequently Asked Questions
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Brian Crower Crankshaft - Nissan RB26/RB25 79mm Stroke 4340 Billet




