Eagle B11321L070 Balanced Engine Rotating Assembly - 8-Cylinder Kit

The Eagle B11321L070 is a pre-balanced engine rotating assembly kit designed for 8-cylinder applications. As with all Eagle balanced assemblies, this kit is precision-balanced in-house at the factory, eliminating the need for additional machine shop balancing prior to installation.

Eagle Specialty Products is the largest aftermarket connecting rod manufacturer in the world, and their rotating assembly kits are assembled using name-brand, top-tier components tested and fit together before shipping. Every assembly is test-fitted at the Eagle facility to ensure proper fitment and performance.

Kit Includes:

• Eagle crankshaft (cast or forged depending on application variant)
• Eagle SIR I-Beam or H-Beam connecting rods with ARP rod bolts
• Hypereutectic or forged aluminum pistons
• Piston rings suited to the intended application
• Rod and main bearings (King or Clevite)

Key Features:

• Factory balanced — part numbers beginning with "B" are balanced by Eagle using Hines computerized balancers and require no additional balancing
• Designed for 8-cylinder engine configurations
• Components sourced from industry-leading manufacturers including ARP, King, Clevite, Hastings, and others
• Wide bore and compression ratio options available across the Eagle rotating assembly lineup
• Suitable for street performance and street/strip applications

Eagle rotating assembly kits offer an affordable, high-quality solution for engine builders looking to upgrade or rebuild with matched, performance-ready components straight out of the box.