Eagle 12604030 Competition Rotating Assembly - 8 Cylinder

The Eagle 12604030 Competition Rotating Assembly is a complete, high-performance engine kit designed for serious performance applications. This premium assembly features forged 4340 steel construction and race-proven components engineered for engines producing over 500 horsepower.

Key Components:

• 3.750" forged 4340 steel crankshaft with center counterweights for superior strength and balance
• 6.000" forged H-beam connecting rods with 7/16" ARP 8740 chromoly bolts
• Forged 2618 aluminum Mahle pistons with 4cc dome design, 4.125" bore
• Plasma-moly piston rings for reduced friction and improved sealing
• Complete bearing set (rod and main bearings)

Eagle's Competition series rotating assemblies utilize forged components throughout, providing the durability and reliability required for high-stress racing environments, forced induction applications, and nitrous oxide systems. The forged 4340 crankshaft delivers exceptional strength, while the H-beam connecting rods offer an optimal strength-to-weight ratio. Mahle forged pistons are designed to withstand extreme cylinder pressures and temperatures.

Note: This is an unbalanced assembly and must be professionally balanced before installation. Professional installation and proper clearance checking is recommended.