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The Eagle Pro Street rotating assembly for Chevy 400 pairs a 3.750" forged 4140 crank with 6.000" 4340 I‑beam rods and 7/16" ARP 8740 bolts as a complete bottom end suited to naturally aspirated racing. It includes forged 4032 MAHLE 5cc flat‑top 4.165" pistons, plasma‑moly file‑fit rings and King XP rod/main bearings for reliable track use.
Eagle Chevy 400 350 Mains 3.750in Crank 6.000in I-Beam Rods 4.165in Pistons Rotating Assembly
