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The ARP 12-point main stud kit for 1999+ Pontiac Supercharged 3800 L67 applications supplies a 12-point main-stud solution tailored to that supercharged engine. Packaged as a complete kit, it replaces factory main fasteners with a purpose-built 12-point design to aid secure crankshaft retention during rebuilds or upgrades, simplifying installation for L67-powered engines.
ARP 99+ Pontiac Supercharged 3800 L67 12pt Main Stud Kit
