Specifications
- Brand
- Brian Crower
- Part #
- BC5109LW

Brian Crower Crankshaft - Lightweight Mitsubishi 4G63 - 7 bolt 102mm Stroke 4340 Billet
$3058.65
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Fits 1993-1999 Mitsubishi Eclipse. Brian Crower lightweight 4340 billet crankshaft for Mitsubishi 4G63 7-bolt engines.
Key Features
- Fits 1993-1999 Mitsubishi Eclipse, 1993-1998 Eagle Talon, 1993-1994 Plymouth Laser, and 2003-2006 Mitsubishi Lancer.
- Constructed from strong 4340 billet steel for enhanced durability.
- Features a 102mm stroke for increased engine displacement.
- Lightweight design aids in improved engine response and higher RPM potential.
- Designed for the Mitsubishi 4G63 7-bolt engine configuration.
Product Details
Brian Crower is well-known for making strong internal engine components for performance builds. This Brian Crower crankshaft is a prime example, built for the Mitsubishi 4G63 7-bolt engine found in popular models like the 1993-1999 Mitsubishi Eclipse, 1993-1998 Eagle Talon, 1993-1994 Plymouth Laser, and 2003-2006 Mitsubishi Lancer. If you're rebuilding the heart of your performance vehicle and need a solid foundation, this crankshaft is designed to handle the demands of a high-output engine.
This crankshaft is forged from 4340 billet steel, a material chosen for its exceptional strength and durability under high stress. It features a 102mm stroke, which is longer than the stock stroke, allowing for increased displacement and potentially more power. The 'lightweight' designation means it has been carefully balanced and machined to reduce rotational mass, which can lead to improved engine response and higher RPM capabilities. This attention to detail in material selection and machining makes it a reliable choice for builds aiming for significant power increases.
When installing a performance crankshaft like this, it's crucial to ensure all related components are up to spec. This includes proper balancing of the rotating assembly (crank, rods, pistons, flywheel) and using high-quality bearings. Refer to the manufacturer's installation instructions for specific details on assembly and break-in procedures to get the most out of this well-built component.
Specifications
- Brand
- Brian Crower
- Manufacturer Part #
- BC5109LW
Frequently Asked Questions
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Brian Crower Crankshaft - Lightweight Mitsubishi 4G63 - 7 bolt 102mm Stroke 4340 Billet




