Eagle 129064065 8-Cylinder Rotating Assembly Kit

The Eagle 129064065 is a Competition-grade rotating assembly kit designed for LS-series V8 engines, featuring a forged 4340 steel crankshaft with 4.000-inch stroke and 6.125-inch H-beam connecting rods. This premium assembly is equipped with Eagle's forged 4340 center-counterweighted crankshaft, forged H-beam rods with ARP 2000 or L19 bolt upgrade, and purpose-built heavy-duty pistons designed for high boost levels or heavy nitrous applications.

Key Features:

• Forged 4340 steel crankshaft with 4.000-inch stroke for increased displacement
• Forged 4340 H-beam connecting rods with 6.125-inch center-to-center length
• 7/16-inch ARP 8740 or ARP 2000 rod bolts for superior clamping force
• Heavy-duty forged pistons engineered for extreme performance applications
• Complete assembly includes pistons, rings, rod and main bearings
• Available with 24-tooth or 58-tooth reluctor options
• Precision-engineered for demanding racing and high-performance street applications

Eagle specializes in crankshafts, connecting rods, and rotating assemblies, with components featuring a smoother surface than competitor products for better oil flow, improved lubrication, and reduced wear. This Competition series assembly delivers professional-grade strength and reliability for engines producing over 500 horsepower. Professional balancing by a qualified machine shop is required before installation.