Eagle 11113070 Competition Rotating Assembly for Chevy BBC 454-498

The Eagle 11113070 Competition Rotating Assembly is engineered for high-performance Chevrolet Big Block 454 engines, designed to build stroker configurations up to 498 cubic inches. This complete rotating assembly delivers the ultimate reliability and strength at an affordable price for the most demanding racing applications including naturally-aspirated, nitrous, and forced-induction builds.

Complete Competition Kit Includes:

• Forged 4340 steel center-counterweighted crankshaft with 4.250-inch stroke
• Eagle H-Beam connecting rods with ARP 2000 or L19 fasteners
• Forged aluminum pistons (SRP or MAHLE)
• Premium piston rings (Hastings)
• High-performance rod and main bearings (Clevite or King)

Key Features:

• Center-counterweighted crankshaft design provides added stability at high RPM and high-power applications
• Forged 4340 chromoly steel construction using Eagle's proprietary heat treatment process for superior strength
• 0.125-inch fillet radiuses for maximum durability (chamfered/narrowed bearings required)
• Nitrided and micropolished crankshaft surface for enhanced wear resistance
• Two-piece forging process on rods orients metal grain to direction of stress
• Purpose-built for racing use including nitrous oxide and boost applications

This is a balanced assembly (part numbers beginning with "B" are factory-balanced by Eagle). Designed for Chevrolet Big Block 454 engines with 2-piece rear main seal. This Competition series assembly is perfect for engines producing well over 500 horsepower and is trusted by professional engine builders and racing teams worldwide.

Note: Minor clearancing of block may be required. Internally balanced assembly does not include flexplate or harmonic balancer.