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The Industrial Injection 12mm Gorilla girdle arrives with ARP XL main studs to reinforce the crankcase area and improve main cap retention. This heavy‑duty girdle is intended to stiffen the bottom end during high‑load use and provides a robust upgrade for engines that require increased main stud strength. Installation requires compatible mains and torque procedures consistent with ARP stud use.
Industrial Injection 12mm Gorilla Girdle w/ ARP Xl Main Studs
