Eagle 12302L040 SBC 350 Competition Rotating Assembly .040 Overbore

The Eagle 12302L040 is a high-performance competition rotating assembly engineered for Small Block Chevy 350 applications with a .040" overbore. This complete kit is designed to support engine builds up to 750 horsepower, with potential for over 900 horsepower with upgraded rod bolts.

Kit Includes:

• Eagle 4340 forged steel crankshaft with 3.480" stroke
• Eagle 5.700" H-Beam connecting rods with 7/16" ARP 8740 cap screw bolts
• Forged pistons (SRP, Icon, or MAHLE depending on availability)
• Performance piston ring set
• High-performance race bearings (rod and main)

Key Features:

• Forged 4340 steel crankshaft for maximum strength and durability
• Precision-ground and micro-polished journals for improved oiling
• Internal balance design for smooth operation
• Compatible with 1-piece rear main seal (1986-1999 applications)
• Unbalanced assembly - requires professional balancing before installation

Eagle Competition assemblies are built for serious performance enthusiasts and racers who demand reliability and strength. The 4340 forged steel construction throughout ensures this assembly can handle high boost, nitrous, or naturally aspirated applications with confidence. Note: Balanced version available as part number B12302L040.