Eagle B13057L04053 Small Block Chevy Street Performance Rotating Assembly - 383 Kit

The Eagle B13057L04053 is a complete balanced rotating assembly designed for small block Chevrolet 383 cubic inch street and strip applications. This professionally balanced assembly is ideal for engines producing up to 500 horsepower, delivering exceptional reliability, performance, and value.

Complete Assembly Includes:

• Cast steel crankshaft with 3.750-inch stroke
• Eagle SIR I-beam connecting rods with 5.700-inch rod length
• Keith Black hypereutectic pistons sized for 4.040-inch bore
• Premium piston rings
• Performance street bearings
• 153-tooth flexplate for one-piece rear main seal applications
• Harmonic balancer

Key Features:

• Factory balanced by Eagle—ready to install with no additional balancing required
• External balance configuration designed specifically for 383 CID applications
• All components test-fitted at the factory to ensure proper clearances
• Hypereutectic aluminum pistons provide excellent strength and thermal characteristics
• Cast steel crankshaft offers durability for street performance use

This rotating assembly is engineered for street performance and moderate competition use in small block Chevy engines. Eagle's precision manufacturing and quality control ensure all components work together seamlessly for reliable performance. Perfect for engine builders looking for a proven, cost-effective solution for their 383 build.