Eagle 137904075 Competition Rotating Assembly Stroker Kit - LS3 417ci

The Eagle 137904075 is a high-performance Competition-grade rotating assembly designed to transform your LS3 376ci engine into a powerful 417 cubic inch stroker motor. This complete internal engine kit is engineered for serious performance applications where strength, reliability, and maximum displacement are essential.

Premium Competition Components Include:

• Forged 4340 steel crankshaft with increased stroke for maximum displacement
• Forged H-beam connecting rods with ARP 2000 fasteners for extreme strength
• Forged aluminum pistons precision-matched to the stroke and bore
• Premium piston rings designed for high-performance applications
• Rod and main bearings from a leading manufacturer
• Complete hardware package for professional assembly

Eagle Competition rotating assemblies are purpose-built for demanding racing and high-horsepower street applications. The forged 4340 crankshaft provides superior strength over cast units, while the forged H-beam connecting rods offer exceptional durability under extreme loads. This kit converts the factory 376ci LS3 displacement to 417 cubic inches, delivering substantial gains in torque and horsepower throughout the RPM range.

Important: This is an unbalanced assembly and must be professionally balanced by a qualified machine shop before installation. Professional installation and machine work are required for proper fitment and performance.