Eagle B62304L040 Balanced Rotating Assembly 8-Cylinder Chevy Small Block .040 Overbore

The Eagle B62304L040 is a complete, pre-balanced rotating assembly designed for 8-cylinder Chevrolet small block engines built to a 0.040" overbore. Eagle Specialty Products engineers each rotating assembly to work as a precision-matched system, ensuring proper fit and function right out of the box.

Assembly part numbers beginning with "B" indicate the assembly has been balanced by Eagle at the factory, eliminating the need for additional machine shop balancing before installation. Eagle uses Hines computerized balancers and trained technicians to ensure exacting tolerances.

What's Included:

• Crankshaft (cast or forged, per configuration)
• Connecting rods with ARP bolts
• Pistons matched to 0.040" overbore specification
• Piston rings (file-fit or standard gap, per configuration)
• Rod and main bearings (King or Clevite)

Key Features:

• Factory pre-balanced — no additional balancing required
• Precision test-fitted in-house at Eagle's facility before shipment
• Compatible with Chevrolet small block V8 engine platforms
• High-strength rod and main bearings from King or Clevite included
• Designed for street performance and street/strip applications

Eagle Specialty Products is recognized as one of the largest aftermarket connecting rod manufacturers in the world, offering decades of experience in high-performance rotating assembly engineering. The B62304L040 delivers a ready-to-install solution for builders seeking a dependable, performance-oriented bottom end.