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ARP 12‑point header bolt kit for BB Chevy applications supplies fasteners intended for big‑block Chevrolet exhaust header installation. The kit is specified to fit big‑block Chevy flange hardware and provides the 12‑point drive pattern favored for tight access areas. Use it when replacing factory header bolts or assembling aftermarket headers on compatible big‑block Chevrolet engines.
ARP BB Chevy 12pt Header Bolt Kit
