Eagle 129803800 8-Cylinder Rotating Assembly Kit

The Eagle 129803800 is a complete rotating assembly kit designed for high-performance 8-cylinder engine builds. This professionally engineered kit provides all the essential internal components needed to build a reliable and powerful engine.

Key Components Include:

• 4.000-inch forged 4140 steel crankshaft with 58-tooth reluctor for modern electronic ignition systems
• 6.125-inch I-beam connecting rods manufactured from 4340 steel
• 7/16-inch ARP 8740 rod bolts for superior strength and reliability
• Forged 4032 aluminum pistons with precision ring sets
• Complete bearing set for main and rod journals

Eagle Specialty Products manufactures rotating assemblies that deliver excellent value for street and strip applications. The forged crankshaft provides the strength needed for high-performance builds, while the 4340 steel I-beam rods offer durability and reliability. The inclusion of ARP 8740 fasteners ensures proper clamping force and dependable performance under demanding conditions.

Important Note: Professional balancing is recommended before installation. Verify all clearances and specifications match your block and cylinder head combination before assembly.