Eagle 637324040 LS Competition Rotating Assembly 4.000" Stroke 4.040" Bore

The Eagle 637324040 Competition Rotating Assembly delivers professional-grade strength and reliability for demanding LS engine builds producing up to 750 horsepower. This complete stroker kit features premium forged components engineered to handle high-performance street applications, forced induction, and nitrous oxide systems.

Kit Includes:

• Eagle 4340 forged steel crankshaft with 4.000" stroke and 24-tooth reluctor
• Eagle 6.125" forged 4340 steel I-beam connecting rods with 7/16" ARP 8740 bolts
• Forged 4032 aluminum pistons designed for 4.040" bore
• Hastings premium piston ring set with file-fit gaps
• High-performance Clevite or King main and rod bearings

This unbalanced assembly requires professional balancing by a qualified machine shop before installation. The 4.000" stroke combined with 4.040" bore delivers approximately 408 cubic inches of displacement, providing excellent power potential while maintaining streetability. Eagle's Competition series rotating assemblies offer exceptional value with components built to exacting specifications for serious performance builds.

Note: Internal balancing required before installation. Verify reluctor tooth count, bore size, and cylinder head volume to ensure proper fitment for your specific LS engine application.