Eagle B12303L030 Balanced Rotating Assembly Cylinder - 8

The Eagle B12303L030 is a pre-balanced rotating assembly designed for 8-cylinder engine applications. This complete rotating assembly kit is balanced by Eagle at the factory, eliminating the need for additional machine shop balancing work and ensuring proper operation right out of the box.

Complete Assembly Includes:

• Cast steel crankshaft with precision-ground journals
• Eagle "SIR" forged I-beam connecting rods
• Pistons, rings, and bearings matched to specifications
• Factory-balanced for immediate installation
• Test-fitted in-house to ensure component compatibility

Eagle Specialty Products manufactures high-strength connecting rods and crankshafts using certified steel materials and rigorous quality control processes. Their rotating assemblies are designed to provide reliable performance and affordability for street and performance engine builds. Each component is precision-manufactured and inspected to ensure proper fitment and durability.

Application Note: The "B" prefix indicates this assembly is pre-balanced by Eagle and requires no additional balancing. Verify specific engine application compatibility and bore size requirements before ordering.