The Eagle Pro Street rotating assembly for Chevy 400 uses a 3.750" forged 4140 crank, 6.000" 4340 I‑beam rods and 7/16" ARP 8740 bolts as a ready‑to‑install bottom end for naturally aspirated racing engines. It includes forged 4032 MAHLE 5cc flat‑top 4.125" pistons, plasma‑moly file‑fit rings and King XP rod/main bearings to deliver dependable service under race conditions.
Eagle Chevy 400 350 Mains 3.750in Crank 6.000in I-Beam Rods 4.125in Pistons Rotating Assembly