Eagle B13057L04068 Street Performance Rotating Assembly - SBC 383 CI 3.750" Stroke 4.040" Bore

The Eagle B13057L04068 is a balanced street performance rotating assembly designed for small block Chevy applications. This complete assembly delivers reliable performance for engines producing up to 500 horsepower, making it an excellent choice for street and light performance builds.

Complete Assembly Includes:

• Cast steel crankshaft with 3.750" stroke
• Eagle SIR (Super I-beam Rod) connecting rods with 5.700" center-to-center length
• Silv-O-Lite claimer hypereutectic pistons at 4.040" bore (.040" oversize)
• Perfect Circle piston rings
• Performance street bearings
• 168-tooth flexplate for 2-piece rear main seal applications

Key Features:

• Factory balanced by Eagle - no additional balancing required
• 383 cubic inch displacement with 4.040" bore and 3.750" stroke
• Test-fitted at the factory to ensure proper component compatibility
• Externally balanced design includes flexplate
• Rated for engines up to 500 horsepower

This assembly provides the perfect balance of strength, performance, reliability, and affordability for small block Chevy street performance builds. All components are carefully selected and matched to work together seamlessly, taking the guesswork out of your engine build project.