Eagle 12103040 Rotating Assembly Kit 8-Cylinder Engine

The Eagle 12103040 is a complete rotating assembly kit designed for 8-cylinder engine applications. Eagle Specialty Products is a trusted name in high-performance engine building, offering rotating assemblies that are test-fitted in-house to ensure proper component fitment and compatibility before shipping.

Eagle rotating assembly kits deliver a comprehensive solution for engine builders, combining matched components for a streamlined build process. Each assembly is engineered to provide a strong foundation for both street performance and competition use.

Kit Includes:

• Crankshaft (cast steel or forged, dependent on application)
• Connecting rods (I-beam or H-beam, application specific)
• Pistons with rings (hypereutectic or forged, application specific)
• Rod and main bearings (King or Clevite)

Key Features:

• Components are test-fitted at the Eagle factory for quality assurance
• Available balanced or unbalanced to suit your machine shop's preference
• ARP fasteners used on connecting rod bolts for added reliability
• Piston options available from top manufacturers including MAHLE, KB, and others
• Designed to support a wide range of performance levels and build goals

Eagle rotating assemblies are a go-to choice for engine builders seeking a reliable, performance-ready kit. Confirm all specifications with your supplier or Eagle Specialty Products directly to ensure the correct application match for your build.