Eagle 638803800 8-Cylinder Engine Rotating Assembly Kit

The Eagle 638803800 is an 8-cylinder engine rotating assembly kit from Eagle Specialty Products, a trusted manufacturer of high-performance internal engine components for street, strip, and competition builds. This complete rotating assembly provides everything needed to establish the rotating core of a rebuilt or stroker engine in a single, coordinated kit.

What's Included:

• Eagle crankshaft (cast steel or forged 4340, depending on configuration)
• Eagle connecting rods (I-Beam or H-Beam, depending on configuration)
• Pistons with pins (hypereutectic or forged, depending on configuration)
• Piston rings
• Rod and main bearings (King or Clevite)

Key Features:

• Test-fitted in-house by Eagle to ensure all components work together correctly before shipment
• Connecting rods feature ARP bolts for reliable, high-strength fastening
• Available in balanced configurations — assemblies prefixed with "B" are balanced by Eagle and require no additional machine shop balancing
• Externally balanced assemblies include a Pioneer harmonic damper and flexplate
• Designed for 8-cylinder engine applications

Eagle Specialty Products rotating assemblies are engineered to deliver a strong foundation for performance engine builds, whether naturally aspirated or forced induction. Each kit is designed so that components are fully compatible and ready for installation after basic machine work is complete.