Eagle B1690206057 Balanced Rotating Assembly Kit - BBC 8-Cylinder

The Eagle B1690206057 is a balanced rotating assembly kit designed for Chevy big block V8 engines. This complete internal engine kit provides all the critical rotating components needed for a reliable engine build, professionally balanced and ready for installation.

Complete Assembly Includes:

• Cast steel crankshaft with 4.000" stroke and .092" fillet radiuses for improved strength
• Eagle forged I-beam connecting rods with 6.200" center-to-center length
• ARP 8740 fasteners (3/8") for superior rod bolt clamping force
• Forged 4032 aluminum pistons with inverted dome design (-18cc)
• 4.060" bore pistons for precise engine displacement
• Complete piston ring set with file-fit rings
• Performance engine bearings (rod and main bearings included)
• Factory balanced assembly - ready to install without additional balancing

Eagle rotating assemblies are manufactured to strict quality standards with high-strength materials suitable for street performance and mild racing applications up to 500 horsepower. Each kit is balanced as a complete assembly to ensure smooth operation and maximum durability. The cast steel crankshaft features enhanced fillet radiuses compared to OE cranks for increased reliability, while the forged I-beam rods with ARP fasteners provide excellent strength-to-weight ratio for responsive acceleration and longevity.