Eagle 637163820 8-Cylinder Engine Rotating Assembly Kit

The Eagle 637163820 is a complete 8-cylinder engine rotating assembly kit from Eagle Specialty Products, a trusted name in high-performance engine components for street, strip, and racing applications. Eagle's rotating assemblies provide a full package including crank, rods, pistons, rings, and bearings for popular engine combinations.

Key Features:

• Equipped with a forged 4340 center-counterweighted crankshaft (where available), forged H-Beam connecting rods with ARP 2000 or L19 bolt upgrade, and purpose-built heavy-duty pistons.
• All Eagle rotating assemblies are test-fitted in-house to ensure everything works well together before leaving the factory.
• Every assembly includes bearings from either King or Clevite and rings suited to the intended application.
• Available balanced or unbalanced, allowing your machine shop to handle balancing if preferred.
• Externally balanced assemblies balanced by Eagle include a harmonic damper and flexplate (or flywheel for select applications) from Pioneer.

Eagle offers a wide range of compression ratios and bore sizes utilizing pistons from leading manufacturers such as Federal Mogul/Speed Pro, KB, Icon, Mahle, JE/SRP, CP/Arias, Traum, Diamond, DSS, and Ross. This assembly is designed to deliver maximum reliability and performance straight out of the box.