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This ARP header bolt kit is specified for Oldsmobile 350–455 engines using 3/8" 12-point stainless steel fasteners. The kit supplies high-quality 12-point bolts intended for header installation and header-to-cylinder-head fastening in Olds V8 applications, providing a corrosion-resistant stainless steel fastener solution for assembling aftermarket or replacement header systems.
ARP Olds 350-455 3/8in 12pt SS Header Bolt Kit
