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The Eagle Competition rotating assembly for Ford 429/460 Boss9 centers a 4.300in 4340 steel crank with 6.800in H‑beam rods and forged 4032 Mahle -8cc flat-top 4.390in pistons for racing use. The package includes 7/16in ARP 8740 bolts, plasma‑moly file-fit rings and King XP rod and main bearings, provided as a complete rotating pack suited to competitive applications.
Eagle Ford 429/460 Boss9 4.300in Crank 6.800in H-Beam -8cc Flat Top 4.390in Piston Rotating Assembly
