Eagle B15403E000 Street & Strip Rotating Assembly for Chevy 350

The Eagle B15403E000 is a balanced street and strip rotating assembly designed for small block Chevrolet 350 cubic inch engines. This complete internal engine kit is engineered for naturally aspirated street performance applications producing under 500 horsepower, delivering reliable power for daily drivers and weekend performance builds.

Complete Assembly Includes:

• Cast steel crankshaft with 3.480-inch stroke
• Eagle SIR I-Beam connecting rods with 5.700-inch center-to-center length
• 3/8-inch ARP 8740 rod bolts for enhanced durability
• Hypereutectic aluminum pistons with -10cc dish design
• Hastings plasma-moly piston rings with standard gap
• King SI rod and main bearings
• Harmonic damper and flexplate

Key Features:

• Factory balanced assembly - ready to install with no additional balancing required
• 4.000-inch bore configuration for stock Chevy 350 blocks
• Compatible with 2-piece rear main seal applications
• Cast steel crankshaft provides excellent strength-to-weight ratio for street use
• Hypereutectic pistons offer improved wear resistance and tighter tolerances than cast pistons

This rotating assembly is ideal for engine rebuilds, restorations, and mild performance upgrades on classic Chevrolet vehicles equipped with small block 350 engines. The "B" prefix in the part number indicates this assembly is pre-balanced by Eagle, eliminating the need for machine shop balancing work and reducing installation time.