Eagle 12163030 8-Cylinder Engine Rotating Assembly Kit

The Eagle 12163030 is a complete engine rotating assembly kit designed for 8-cylinder applications. Eagle Specialty Products rotating assemblies are engineered to deliver a performance-matched combination of components, providing a reliable foundation for engine builds ranging from street performance to strip use.

Eagle rotating assemblies are test-fitted in-house to ensure all components work together properly before shipment. Each kit is built around a matched combination of crankshaft, connecting rods, pistons, rings, and bearings — everything needed to assemble the reciprocating engine core.

Key Features:

• Complete rotating assembly kit for 8-cylinder engines
• Components are test-fitted at the factory for proper fitment and function
• Available in balanced or unbalanced configurations — assemblies not prefixed with "B" require balancing by a qualified machine shop prior to installation
• Includes crankshaft, connecting rods, pistons, rings, and rod/main bearings
• Externally balanced assemblies (when applicable) include a Pioneer harmonic damper and flexplate or flywheel
• Eagle Specialty Products is one of the largest aftermarket connecting rod and rotating assembly manufacturers in the performance industry

Note: This assembly must be verified for balance type before installation. Unbalanced assemblies require professional balancing by a qualified machine shop. Always confirm component specifications with Eagle Specialty Products prior to finalizing your build.