91 vette tpis header question
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Burning Brakes
Joined: Jun 2003
Posts: 949
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From: smithtown ny
91 vette tpis header question
about a month ago i was getting knock retard after doing everything possiable i finally started to look into false knock retard sure enough on my passanger side the header tube is up against the frame metal to metal contact if i bang it with my hand you can hear the noise how do i seperate this????? it is very tight together.
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
Re: 91 vette tpis header question (6spd)
I think the best (safest) way is to loosen the bolts at the manifold a little as well as those at the Y-pipe connection and maybe even where the front Y contacts the cat.
Then wedge a piece of metal between the pipe and the frame and tighten up the bolts. After all is tight, pry out the "spacer" and see if ther is now a small gap between the pipe and the frame.
You could always remove that header and have it bent a little but I don't know how the coating would hold up. Of course working out the above "spacer" may also mar the coating.
Then wedge a piece of metal between the pipe and the frame and tighten up the bolts. After all is tight, pry out the "spacer" and see if ther is now a small gap between the pipe and the frame.
You could always remove that header and have it bent a little but I don't know how the coating would hold up. Of course working out the above "spacer" may also mar the coating.
Team Owner
Joined: Jun 2002
Posts: 21,510
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From: On a Wisconsin Death Trip
Re: 91 vette tpis header question (65Z01)
Quote:
Of course working out the above "spacer" may also mar the coating.
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Good idea. Use a piece of wood instead. :thumbs:
Of course working out the above "spacer" may also mar the coating.
________________________________________ _______________________
Good idea. Use a piece of wood instead. :thumbs:
Burning Brakes
Joined: Jun 2003
Posts: 1,229
Likes: 1
Re: 91 vette tpis header question (6spd)
Does the 91 have the LT1 or L98?
I'm just wondering because I'm planning on getting a set of headers this summer. I decided to go with the TPIS headers but if they touch the frame I'll go with the hookers.
Does any one else here have the TPIS headers? are your headers touching the frame?
I'm just wondering because I'm planning on getting a set of headers this summer. I decided to go with the TPIS headers but if they touch the frame I'll go with the hookers.
Does any one else here have the TPIS headers? are your headers touching the frame?
Safety Car
Joined: Feb 2000
Posts: 4,564
Likes: 110
From: Austin Texas
Re: 91 vette tpis header question (TheStef)
Mine fit fine...
Only thing I had to do was grind a bolt head flatter on the diagonal brace (passenger side).
It does get close to the fuel lines, but a little work before final install made that a non-issue.
Only thing I had to do was grind a bolt head flatter on the diagonal brace (passenger side).
It does get close to the fuel lines, but a little work before final install made that a non-issue.
