Eagle 137304040 Competition Rotating Assembly 410 CID Chevy LS2 4.040 Bore 4.000 Stroke

The Eagle 137304040 Competition Rotating Assembly is a complete high-performance engine kit designed for Chevrolet LS2 engines, delivering 410 cubic inches of displacement. This unbalanced assembly is engineered for all forms of racing use including nitrous oxide and forced-induction applications.

Complete Assembly Includes:

• 4.000" forged 4340 steel crankshaft with 24-tooth reluctor
• 6.125" forged H-beam connecting rods with 7/16" ARP 8740 bolts
• Forged 4032 DSS flat top pistons with -5cc valve relief, 4.040" bore
• Plasma-moly file-fit piston rings
• King XP performance rod and main bearings

Key Specifications:

• Displacement: 410 cubic inches
• Bore: 4.040 inches
• Stroke: 4.000 inches
• Rod length: 6.125 inches (center-to-center)
• Piston design: Flat top with -5cc valve relief
• Balance: Unbalanced (requires professional balancing before installation)

Eagle Competition Rotating Assemblies feature premium components throughout, including forged 4340 steel crankshafts for maximum strength and durability under extreme stress. The forged H-beam connecting rods with upgraded ARP fasteners provide exceptional reliability for high-horsepower builds. This kit is ideal for serious performance enthusiasts building race engines or high-boost street machines.

Note: This is an unbalanced assembly and must be balanced by a qualified machine shop before installation.