Description: Forged 4340 steel in a non-twist forging with multi-stage heat treatment Shot-peened, stress-relieved, and nitrided surface for superior durability Target bobweight guaranteed +/- 2%. Will internal balance without heavy metal Recommended for use up to 1500hp Make: Chevy Engine: SBC (400 Mains) Material: Forged 4340 Steel Stroke: 3.750" Stroke Balance: Internal Balance Rear Main Seal: 2-Piece Rear Main Seal Rod Journal Diameter: 2.100" Main Journal Diameter: 2.648" Min. Rod Length: 5.700"
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