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Stage 8 Locking Header Bolts
I will soon have a set of JBA long tubes arriving for my 427 Windsor that will land in my '73 Mach 1 Q code. Has anyone used the subject header bolts? Thoughts or proven alternatives appreciated. I will be using Remflex gaskets. I tried a search to no avail.
I do not know them, Stage 8? I use the normal 12 point header bolts but I do put never seize on them so they do not lock up over time.

When a man is in the woods and talks and no women are there is he still wrong??
(04-18-2018, 07:40 AM)Carolina_Mountain_Mustangs Wrote: I do not know them, Stage 8? I use the normal 12 point header bolts but I do put never seize on them so they do not lock up over time.

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To me they look like a royal pain to hold the retainers in place and then install the c-clips, especially under the master cylinder and booster. I've never had a problem with headers, just need to re-torque them a couple of times. I believe that anti-sieze actually helps to keep them from backing out by absorbing some of the vibrations.

“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
I used them on my 460. Originally I had ARP 12pt bolts that I was having to retorque from time to time. Installed the Stage 8 bolts in 2004 and haven't touched them since. I would definitely recommend them.


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I am currently using them on my roller 302. One thing, they started to rust. I contacted the company and they sent me a new set pronto.

mustang7173 Thankyouyellow

"Courage is being scared to death but saddling up anyway" -- John Wayne
Appreciate the replies. A set is on the way.
Those stainless steel stage 8 header bolts were the only set that worked for my Hooker Headers. I've tried a few others before but there's so little room to get a wrench or socket on it.
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