thread lock or anti-seize on header bolts?
Thread Starter
TECH Veteran
Joined: Aug 2002
Posts: 4,055
Likes: 1
From: Hartsdale, NY
thread lock or anti-seize on header bolts? Installing the FLP headers soon.
I assume thread-lock goes on the cylinder head bolts, and all other bolts (y-pipe, cat-back, etc.) and spark plugs get anti-seize.
There seems to be alot of confusion on this point, so help me out guys!
Is everyone fabricating their own restricter AIR plates using a 3/16 inch drill bit?
I assume thread-lock goes on the cylinder head bolts, and all other bolts (y-pipe, cat-back, etc.) and spark plugs get anti-seize.
There seems to be alot of confusion on this point, so help me out guys!
Is everyone fabricating their own restricter AIR plates using a 3/16 inch drill bit?
Re: thread lock or anti-seize on header bolts? Never have used any thread lock on any of my exhaust components in four years with zero issues. I do use a little anti-seize on the header bolts. Never seen anyone have problems with header bolts on the LS1.
Re: thread lock or anti-seize on header bolts? Some people complain about header bolts
loosening. Others complain about busting
manifold bolts off. I would say, anti-
sieze and a mechanical retention scheme
(safety wire or clip-locks) gives the
best of both worlds.
loosening. Others complain about busting
manifold bolts off. I would say, anti-
sieze and a mechanical retention scheme
(safety wire or clip-locks) gives the
best of both worlds.
Re: thread lock or anti-seize on header bolts? I would use a little bit of antiseize on the bolts. I have heard that the bolts that come with the FLP headers kind of suck... I really can't say much as I bought mine used and got no new bolts. I bought a set of stage-8 locking header bolts and did not use the locking clips (I put one on... it rattled and was a total PAIN to get on, so I took it back off). In a year, I've never had a bolt back off. I have had to pull my header a couple of times, each time the antiseize made it very easy to get the bolts back off.
I did make my own AIR restrictor plates, used either a 1/8" or 3/16", was somewhere around there.
I definately recommend using antisize on anything that comes in contact with the heat of the headers. I alsways take a little bit of antiseize and put it down in the groove of the v-band clamps for the ORP/Cat pipes... it makes it MUCH easier to get the clamps off whenever you need to. I installed my set relatively quickly and didn't pull off the coil packs or spark plugs. Having worked on my car more since then, I would definately pull the coil packs off, it makes it much easier.
I did make my own AIR restrictor plates, used either a 1/8" or 3/16", was somewhere around there.
I definately recommend using antisize on anything that comes in contact with the heat of the headers. I alsways take a little bit of antiseize and put it down in the groove of the v-band clamps for the ORP/Cat pipes... it makes it MUCH easier to get the clamps off whenever you need to. I installed my set relatively quickly and didn't pull off the coil packs or spark plugs. Having worked on my car more since then, I would definately pull the coil packs off, it makes it much easier.
TECH Resident
Joined: May 2002
Posts: 829
Likes: 0
From: Fremont, CA
Re: thread lock or anti-seize on header bolts? Thread locker wont do anything for header bolts anyway... the heat is too much and the compound would just melt away or possibly permanently seize the bolts.. so i wouldnt do that.. header bolt locks are a better idea...
Re: thread lock or anti-seize on header bolts? I would never use locktite i just took my headers off and they were tight as hell to get off steel and aluminum don't mix thats like lock tight i would use antiseize
