Eagle B15403L03053 Small Block Chevy Street Performance Rotating Assembly - 355ci

The Eagle B15403L03053 is a complete street performance rotating assembly designed for small block Chevrolet 355 cubic inch engines. This professionally balanced assembly provides exceptional value and reliability for street and strip applications producing under 500 horsepower.

Complete Assembly Includes:

• Cast steel crankshaft with 3.480-inch stroke
• Eagle SIR forged 5140 steel I-beam connecting rods with 5.700-inch center-to-center length
• 3/8-inch ARP 8740 capscrew rod bolts
• Hypereutectic aluminum pistons with flat top or dished design for 4.030-inch bore
• Plasma-moly piston rings with standard gap
• King SI performance rod and main bearings
• Harmonic balancer and flexplate (external balance applications)

Key Features:

• Factory balanced assembly - ready to install with no additional balancing required (part numbers beginning with "B" are pre-balanced by Eagle)
• Cast steel crankshaft with .092-inch fillet radiuses for improved strength over OEM
• Forged steel connecting rods for superior durability
• Quality hypereutectic pistons for excellent wear resistance and thermal stability
• Premium bearing sets included for complete installation

Eagle Specialty Products is renowned for producing high-strength engine components with smoother surface finishes than competitor products, allowing better oil flow for improved lubrication and reduced wear. This rotating assembly is ideal for street performance builds, bracket racing, and budget-conscious enthusiasts seeking proven reliability.