Eagle 137003900 8-Cylinder Engine Rotating Assembly Kit

The Eagle Specialty Products 137003900 is a complete 8-cylinder engine rotating assembly kit designed to take the guesswork out of selecting and matching bottom-end components. Built by the largest aftermarket connecting rod manufacturer in the world, this kit delivers the precision, strength, and reliability demanded by performance engine builders.

Key Features:

• Complete rotating assembly kit for 8-cylinder engines — includes crankshaft, connecting rods, pistons, rings, and bearings
• All components are test-fitted in-house by Eagle to ensure proper fit and function before shipment
• Connecting rods forged from high-strength steel for superior durability over OEM rods
• Pistons matched to the application for the correct compression ratio and bore size
• Rod and main bearings from King or Clevite included for a complete bottom-end solution
• Available in balanced or unbalanced configurations to suit your machine shop preference
• Rings included and suited to the intended application

Eagle rotating assemblies are engineered to support demanding street and performance builds. By sourcing a complete, pre-matched kit, builders eliminate the risk of mismatched components and reduce overall assembly time. The Eagle 137003900 is the smart choice for anyone building or rebuilding an 8-cylinder engine who demands quality, consistency, and proven performance.