Eagle Pro Street rotating assembly for Chevy 409 is built for naturally aspirated racing use and pairs a forged 4340 4.000in crank with 6.135in 4340 I-beam rods and 7/16in ARP 8740 bolts. Forged 2618 Ross .365in dome 4.372in pistons, plasma-moly standard gap rings and King XP rod/main bearings are included, providing a complete assembly tuned for Pro Street applications.
Eagle Chevy 409 4.000in Crank 6.135in I-Beam Rods .365in Dome 4.372in Pistons Rotating Assembly