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The Eagle rotating assembly kit is a balanced competition package built for racing use, including a 4.250" cast crank, 6.635" H‑beam rods with 7/16" ARP 8740 bolts, and forged 4032 pistons with a -26cc inverse dome sized 4.080". It ships with plasma‑moly file‑fit rings and King SI bearings, providing a complete rotating assembly suitable for high‑stress forced‑induction or nitrous applications.
Eagle Ford 390 Competition Rotating Assembly Kit w/ 4.25in H-Beam - 4.08in Bore *Balanced
