Eagle 14143030 Ford Competition Rotating Assembly Kit 4.030" Bore

The Eagle 14143030 is a high-performance competition rotating assembly designed for Ford V8 engines. This complete kit delivers exceptional strength and reliability for demanding racing and high-performance street applications.

Complete Assembly Includes:

• Forged 4340 steel crankshaft with 4.170" stroke and 2.750" main journals
• H-beam connecting rods measuring 6.300" center-to-center length
• ARP 8740 chromoly rod bolts in 7/16" diameter for superior clamping force
• Forged 4032 aluminum DSS pistons with -18cc inverted dome design
• Premium piston rings with optimized file-to-fit gap specifications
• High-performance racing bearings (rod and main)

Specifications:

• Bore Size: 4.030 inches
• Stroke: 4.170 inches
• Rod Length: 6.300 inches
• Rod Journal: 2.200 inches
• Main Journal: 2.750 inches

Eagle rotating assemblies are manufactured using certified steel and undergo rigorous quality control including magna-flux and dimensional inspection. The forged 4340 steel crankshaft provides maximum strength and durability, while the H-beam rods offer an excellent balance of strength-to-weight ratio. The forged pistons are built to withstand high cylinder pressures in forced induction and naturally aspirated applications.

Important: This assembly is unbalanced and must be professionally balanced by a qualified machine shop before installation. Proper balancing is essential for engine longevity and performance.