Eagle 128554005 Competition Rotating Assembly CID Stroke - 403 LS2 4.000

The Eagle 128554005 Competition Rotating Assembly is engineered for high-performance LS2 applications demanding maximum strength and reliability. This 403 cubic inch kit is perfect for all forms of racing use including nitrous and forced-induction, capable of supporting up to 750 horsepower builds.

Complete High-Performance Kit Includes:

• 4.000" forged 4340 steel crankshaft with 58-tooth reluctor
• 6.125" forged 4340 H-beam connecting rods with 7/16" ARP 8740 bolts
• Forged 2618 aluminum CP inverted dome pistons (-27.5cc) at 4.005" bore
• Plasma-moly file-fit piston rings
• King XP high-performance rod and main bearings

Key Specifications:

• Displacement: 403 cubic inches
• Stroke: 4.000 inches
• Bore: 4.005 inches
• Rod Length: 6.125 inches
• Reluctor Ring: 58-tooth (LS2 compatible)
• Balance: Internally balanced design

Important: This is an unbalanced assembly and must be balanced by a qualified machine shop before use. Harmonic balancer and flexplate/flywheel sold separately and must match Eagle balancing specifications. Designed for Chevrolet LS2 engines with 4.000" standard bore.