Eagle B12304L030 Balanced Rotating Assembly Cylinder - 8

The Eagle B12304L030 is a complete balanced rotating assembly designed for high-performance 8-cylinder engine builds. This pre-balanced kit eliminates the need for additional balancing work at the machine shop, saving time and ensuring proper component compatibility right out of the box.

Complete Assembly Includes:

• Cast steel crankshaft with precision-ground journals
• Eagle SIR (Super I-Beam Rod) connecting rods with ARP fasteners
• Hypereutectic aluminum pistons with .030" overbore
• Piston rings with standard gap specifications
• Rod and main bearings

Key Features:

• Factory balanced by Eagle - ready to install with no additional balancing required
• Test-fitted in-house to ensure proper clearances and fitment
• Quality components designed to work together as a complete system
• Suitable for street performance applications up to 500 horsepower
• .030" overbore for rebuilt engines with standard machining

Eagle Specialty Products manufactures high-strength engine components using certified materials and rigorous quality control processes. Their rotating assemblies provide excellent value for engine builders seeking reliability and performance without compromising quality. Each assembly is professionally balanced to ensure smooth operation and long service life.