The Eagle Pro Street rotating assembly for Pontiac 400 (4.500 in crank) is a complete forged kit intended for naturally aspirated racing engines. It combines a 4.500 in forged 4340 crank with 6.800 in 4340 I-beam rods and forged 4032 MAHLE -6cc flat-top 4.155 in pistons. The package includes 7/16 in ARP 8740 bolts, plasma-moly file-fit rings and King XP rod and main bearings.
Eagle Pontiac 400 4.500in Crank 6.800in I-Beam Rods -6cc Flat Top 4.155in Pistons Rotating Assembly