Eagle 21207040 8-Cylinder Rotating Assembly Kit

The Eagle 21207040 is a complete rotating assembly designed for 8-cylinder engine applications. Eagle provides full rotating assemblies including crank, rods, pistons, rings, and bearings for many popular engine combinations, delivering a comprehensive solution for engine builders and performance enthusiasts.

Typical Components Include:

• Cast steel or forged crankshaft with enhanced fillet radiuses for improved strength
• Connecting rods (I-Beam or H-Beam design depending on application)
• Pistons matched to your specific bore and compression requirements
• Piston rings
• Rod and main bearings

Eagle rotating assemblies offer great value, performance, and reliability for engines producing under 500 horsepower, making them an excellent choice for street performance and street/strip applications. Assembly part numbers that begin with "B" are balanced by Eagle and require no additional balancing, while part numbers that do not begin with "B" are unbalanced assemblies and must be balanced by a qualified machine shop before use.

Eagle Specialty Products is known for producing quality engine components at competitive prices, making complete engine builds more accessible. This rotating assembly provides the essential internal components needed to build or rebuild your 8-cylinder engine with confidence.