Eagle 129464065 Competition Rotating Assembly 415 CID LS3 4.065" Bore

The Eagle 129464065 Competition Rotating Assembly is a complete 415 cubic inch stroker kit engineered for high-performance racing applications including nitrous and forced-induction systems. Designed for Chevrolet LS3, L92, and LS9 engines with 4.065" standard bore, this assembly delivers the ultimate strength and reliability for engines producing up to 750 horsepower.

Complete Kit Includes:

• Forged 4340 steel crankshaft with 4.000" stroke and 58-tooth reluctor
• Forged 4340 H-beam connecting rods, 6.125" length with 7/16" ARP 8740 bolts
• Mahle forged 4032 aluminum pistons, -4cc flat top design, 4.065" bore
• Plasma-moly file-fit piston rings
• King XP high-performance rod and main bearings

Important Installation Notes: This is an unbalanced assembly and must be balanced by a qualified machine shop before installation. Damper and flexplate/flywheel are not included. Designed for internal balance. Compression ratio with 72cc heads is approximately 11.1:1 with .040" head gasket thickness.

Eagle Competition Rotating Assemblies represent the perfect combination of race-proven durability and affordable pricing for serious performance enthusiasts and professional engine builders.