fits make: Nissan.

( Brand: Brian Crower ), ( Manufacturer Part Number: BC5239LW ), ( Part Type: Crankshaft )
The BC5239LW 79mm Billet Crower Brian Crankshaft is a high-performance upgrade for your Nissan RB25 or RB26 engine. This billet crankshaft is specifically designed for serious racing applications, providing enhanced strength, durability, and reliability over stock components.
Manufactured from 4340 steel, this crankshaft boasts exceptional tensile strength and fatigue resistance. The billet construction process ensures a uniform and precise shape, minimizing stress points and improving overall engine balance. The 79mm stroke offers increased displacement and power output, making this crankshaft an excellent choice for high-horsepower applications.
The BC5239LW features a precision-machined main journal bore, ensuring a perfect fit for your pistons and connecting rods. The main cap bolts are also designed for increased clamping force, reducing the risk of failure under high-stress conditions. The crankshaft's journal and main cap surfaces are treated with a high-performance nitride coating, providing excellent wear resistance and reducing friction for smoother engine operation.
The BC5239LW Billet Crower Brian Crankshaft is a finely crafted piece of racing hardware, manufactured to the highest standards of quality and precision. This crankshaft is an excellent investment for any serious RB25 or RB26 engine build, providing enhanced performance, reliability, and longevity.
Pros of buying BC5239LW 79mm Billet Crower Brian Crankshaft for Nissan RB25/RB26:1. High-quality material: The crankshaft is made of 4340 steel, which is known for its strength and durability, ensuring longevity and reliability.
2. Improved performance: With a larger 79mm bore, the crankshaft provides increased power and torque, resulting in better engine performance.
3. CNC-machined: The precision CNC machining ensures a perfect fit and balanced rotation, reducing vibrations and improving engine efficiency.
4. Brian Crower design: The crankshaft is designed by Brian Crower, a renowned expert in engine performance and reliability.
Cons of buying BC5263LW 79mm Billet Crower Brian Crankshaft for Nissan RB25/RB26:1. High cost: The high-quality materials and precision manufacturing process result in a higher price point compared to standard crankshafts.
2. Requires professional installation: Due to its precision and high-performance design, the crankshaft installation should be performed by a professional to ensure proper assembly and alignment.
3. Potential engine modifications: Installing a larger bore crankshaft may require additional modifications to the engine, such as pistons and rods, to ensure proper clearance and fit.
Conclusion: The BC5239LW 79mm Billet Crower Brian Crankshaft is an excellent choice for enthusiasts looking to boost the performance of their Nissan RB25/RB26 engine. The high-quality materials, precise manufacturing, and Brian Crower design ensure strength, durability, and improved performance. However, the high cost and potential need for additional engine modifications should be considered before making a purchase. If you are willing to invest in a high-performance crankshaft and have the necessary resources for installation, this product is highly recommended.
Fully profiled counterweights are designed for reduced vintage through the crankcase creating less oil resistance for better rpm potential.
Every crankshaft features large radius journals that add rigidity for high horsepower, high boost, high rpm applications.
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CBC machined on state of the art, 5 axis Muzak integrates 300 iv CBC machines to exacting tolerances.
Gun drilled, CBC ground oil holes feature a smooth surface for extra oiling, tear dropped for added oil scoop, cross drilled for priority main feeding to the rods and micro polished to a mirror finish for optimum bearing lubricity.