Eagle 129444065 Competition Rotating Assembly 415ci LS 4.065 Bore 4.000 Stroke

The Eagle 129444065 Competition Rotating Assembly is a high-performance engine kit designed for GM LS engines with 4.065-inch bore (LS3/L92/LS9 applications). This 415 cubic inch assembly features a 4.000-inch stroke and 6.125-inch connecting rod length, delivering the strength and reliability needed for serious performance builds.

Key Components:

• Eagle 4340 forged steel crankshaft for exceptional strength
• Eagle H-Beam connecting rods with ARP 2000 bolts
• Mahle or Arias forged pistons designed for high-performance applications
• Hastings piston rings with file-fit design
• Clevite or King main and rod bearings

Performance Specifications:

• Displacement: 415 cubic inches at 4.065-inch bore
• Stroke: 4.000 inches
• Rod Length: 6.125 inches
• Designed for engines producing up to 750 horsepower
• Engineered for internal balance

Important Notes:

• This assembly does not begin with "B" and is unbalanced - must be balanced by a qualified machine shop before installation
• Damper and flexplate/flywheel are not included
• Compatible with LS3/L92/L99 and LS9 engines featuring 4.065-inch bore in standard or oversized configurations

This Competition series rotating assembly is engineered for high-performance racing applications and is ideal for demanding environments including nitrous and forced-induction setups. Professional installation and proper balancing are essential for optimal performance and engine longevity.