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JE Pistons forged eight‑piston kit for 400 small‑block Chevy (SBC) engines. Flat‑top pistons with a 4.155 in. bore, 1.250" compression distance and -5.0 cc crown volume provide a specific combustion profile for larger SBC assemblies. These pistons are forged from 2618 aluminum in the USA and use JE's Forged Side Relief forging to reduce skirt friction; accumulator grooves and optional skirt coatings improve ring stability where applied.
JE Pistons 4.155 400 SBC FT Set of 8 Pistons
