Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

header bolts

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Old Feb 12, 2010 | 02:33 PM
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eZ's Avatar
eZ
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Default header bolts

what do you guys use? looking for something to keep from backing out and also easier to torque down.

Dan
Old Feb 12, 2010 | 02:39 PM
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I saw some at O'Reilly the other day that come with tie wires. The bolt heads have holes in them and you just run it through 2 bolts in opposing directions. Kinda like safety wiring them but you don't need the pliers.

Another good kind is the ones with the clip that locks on the head once you have them good and tight.
Old Feb 12, 2010 | 03:27 PM
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Stage 8 at Summit has a locking header bolt, they run $45 a set. Once the bolt is torqued, you attach a tear-drop lock that prevents the bolt from turning.
Old Feb 12, 2010 | 04:38 PM
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I take what comes with the header. Never torqued them and never had gone any loose. 3 times lucky?
Old Feb 13, 2010 | 12:05 AM
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the stage 8 are a waste.The bolt holes are too close the tube and you cant use the lock washer on all of them.

ARP has some with a 5/16 head in 6pt or 12 pt. I have them and they havent backed out either after a few heat cycles.remember to use anti sieze with the aluminum heads
Old Feb 13, 2010 | 05:41 PM
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anti seize with aluminum heads?
Old Feb 13, 2010 | 09:13 PM
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used on the header bolt threads, anti seize will resists seizing, galling, and cold welding also retards galvanic action between dissimilar metals(unless you have aluminum botls )
Old Feb 13, 2010 | 09:54 PM
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EZ,, a little off topic, but I couldn't help but notice that this months issue of PHR ripped off your car........ (Check out the COVER of the MARCH issue)

You need to file suit.... You were robbed man...

I always use anti-seize, copper gaskets, and do a couple of re-torques after the first couple of heat cycles. Since I have been using this procedure I have not had any header bolts back off.

Also "better quality headers" are less prone to have the bolts back off.

And remember, paper gaskets (the ones that come with the headers) are ****!

Last edited by JMD; Feb 13, 2010 at 09:59 PM.
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