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Your cart is empty.Stage 8 3/4 inch Locking Header Bolt Kit features a locking header bolt kit of 3/4 inch which fits the Buick, Olds and Pontiac 8 cylinder up to 1979. The Mopar Big Block 383 - 440 cu/inches (exec 413 cu/inches). It includes (12 ea) 3/8 - 16 X 3/4 inch bolts with DHH (includes 3/16 inch recessed allen Head) and matching locking retainers and clips.
Macho Man
2025-01-28 17:01:27
I am using these on a set of No. 17 iron heads. They work. I know they're expensive, but they're worth it. I have only four out of the normal six exhaust bolt holes. Pontiac did not drill the outer bosses in order to save money. I am running Hooker headers with Remflex gaskets and these bolts. It's been three months and I still don't have any leaks. These take time to install, but it's worth it. I totally recommend these for use with headers. My friend is running a Ford small block and his ARP exhaust bolts are coming loose all the time.
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