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OPGI Price: $74.99
Part Type: (P) High Performance, designed to improve performance
Sold As: SET
2016 Riviera Catalog Page: 139
ARP header studs are available for 350-455 Buicks in black oxide-coated chrome-moly steel or ARP’s own “Stainless 300” material. The studs are rated up to 170,000 psi and the stainless versions are impervious to corrosion or extreme heat making them ideal for the application. All the studs come with a special starter nose nut to prevent cross threading. The nuts for the header studs feature 12-points or hex head so they can be tightened easily in small increments.