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Header Bolt Question

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Old Mar 11, 2013 | 11:03 PM
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From: Bogart GA
Default Header Bolt Question

I noticed some of the header bolts have loosened and fallen out. These bolts use spacers and have small hex heads (10 mm wrench) to fit beside tubes. Can anyone recommend where I can fine some replacement bolts? I don't think I need the spacers but def the small heads will be needed. Thanks.
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Old Mar 12, 2013 | 11:56 AM
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Originally Posted by KJL
I noticed some of the header bolts have loosened and fallen out. These bolts use spacers and have small hex heads (10 mm wrench) to fit beside tubes. Can anyone recommend where I can fine some replacement bolts? I don't think I need the spacers but def the small heads will be needed. Thanks.
I doubt they fell out. Factory did not use all bolt holes (16 bolt holes per side on early cars and 14 holes on later cars). Factory only used 6 or 8 bolts per side.
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Old Mar 12, 2013 | 12:04 PM
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when installed some aftermarket headers the supplied bolts backed out on me, I have lost a few. I need to get my car back in the air and re tighten and add a few again I am sure.
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Old Mar 12, 2013 | 04:21 PM
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Originally Posted by USAFPILOT
when installed some aftermarket headers the supplied bolts backed out on me, I have lost a few. I need to get my car back in the air and re tighten and add a few again I am sure.
Installing Headers

Here are Locking Header Bolt Kits (LT5)

LT5 Summit Racing 8905
LT5 8mm x 1.25 The underhead length is 25 mm or about .98 inches



Use the Stage 8 header bolt keepers on all header bolts of Header Bolt Kit.
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Old Mar 12, 2013 | 09:43 PM
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From: Bogart GA
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They did back out as I found two that were about to fall out and threaded back in. I have used the stage 8 bolts in the past on my 72 and while the concept is great, it is difficult enough just getting a wrench on some of the bolts, the little C-clip is is a real trick. If i had that kind of access, i would just periodically tighten them.
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