Eagle 128454135 Competition Rotating Assembly CID Stroke - 430 LS7 4.000

The Eagle 128454135 is a high-performance Competition Rotating Assembly engineered for Chevrolet LS7 engines, delivering 430 cubic inches of displacement. This assembly is perfect for all forms of racing use including nitrous and forced-induction applications.

Complete Assembly Includes:

• Forged 4340 steel crankshaft with 4.000" stroke and 58-tooth reluctor
• 6.125" H-beam connecting rods with 7/16" ARP 8740 bolts
• Forged 2618 aluminum CP flat top pistons with -4.6cc dish, 4.135" bore
• Plasma-moly file-fit piston rings
• King XP performance rod and main bearings

Key Features:

• Forged 4340 steel construction for maximum strength and durability
• Designed specifically for LS7 engines with 4.135" bore diameter
• Unbalanced assembly—professional balancing required before installation
• Premium components rated for high-horsepower racing applications
• Compatible with dry-sump oiling systems

This Competition series assembly features upgraded materials and components compared to street/strip kits, making it ideal for serious racing engines, turbocharged applications, and nitrous oxide systems. Professional assembly and balancing by a qualified machine shop is required.