Eagle 138733898 8-Cylinder Engine Rotating Assembly Kit

Each kit is assembled and test-fitted in-house to ensure proper fitment and compatibility before it leaves the factory, taking the guesswork out of your engine build.

• Crankshaft (cast steel or forged 4340 depending on application tier)
• Connecting rods (I-Beam or H-Beam depending on application tier)
• Pistons with piston pins
• Piston rings
• Rod and main bearings

Key Features:

• All components are test-fitted at the Eagle factory to verify proper clearances and compatibility
• Available in Street Performance, Street/Strip, and Competition configurations to match your power goals
• Balanced assemblies (part numbers beginning with "B") are ready for engine assembly with no additional machine shop balancing required
• Unbalanced assemblies must be balanced by a qualified machine shop prior to installation
• Externally balanced assemblies include a Pioneer harmonic damper and flexplate
• Internally balanced assemblies do not include a flexplate or damper
• Eagle selects premium bearings from King or Clevite to complement each kit

Eagle rotating assemblies are engineered by Eagle Specialty Products, an industry leader in high-strength connecting rods and crankshafts for performance and racing engines. Whether you are building a dependable street engine or an all-out race combination, Eagle offers a rotating assembly solution engineered for your specific application.