Eagle B13010060 Balanced Street & Strip Rotating Assembly Kit - Chevy 400-412

The Eagle B13010060 is a complete balanced street and strip rotating assembly kit designed for Chevy small block 400-412 cubic inch stroker builds. This comprehensive engine kit delivers reliable performance and durability for street and strip applications producing up to 500 horsepower.

Complete Assembly Includes:

• Cast steel crankshaft with 3.750-inch stroke
• Eagle "SIR" forged 5140 steel I-beam connecting rods with 5.700-inch length
• 3/8-inch ARP 8740 rod bolts
• Hypereutectic pistons with flat top design
• File-fit piston rings
• High-performance rod and main bearings

Key Features:

• Factory balanced by Eagle - ready to install with no additional balancing required
• Designed for internal balance without heavy metal
• Standard bore size of 4.030 inches with .060-inch overbore
• Test-fitted in-house to ensure proper fitment and clearances
• Suitable for street performance and weekend strip use

Eagle Specialty Products uses only certified steel materials and rigorous inspection methods including magna-fluxing to ensure a reliable, affordable rotating assembly. This kit provides excellent value for engine builders looking to increase displacement and performance in their Chevrolet small block engine without compromising reliability.