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This Industrial Injection 4BT Gorilla girdle is a 12mm design that comes with ARP XL main studs to reinforce the engine bottom end. Intended for 4BT applications, the girdle boosts main cap retention and structural rigidity under load. Installers should follow recommended torque practices for ARP studs and confirm clearances to ensure proper fitment without modification claims beyond the provided description.
Industrial Injection 4BT 12mm Gorilla Girdle w/ ARP Xl Main Studs
