Header bolts?
Team Owner
Joined: May 2001
Posts: 36,836
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I re-used mine too and no issues at all. Also use the GM gaskets. They do an excellent job. You might even be able to re-use your old ones if they are in good enough shape. I went with new GM since it's cheap insurance. They are not very expensive.
HTH
Le Mans Master
Joined: Aug 2004
Posts: 6,723
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From: NE OH
St. Jude Donor '09-'10
ARP header studs are nice; at about $100 they are expensive for bolts, but do make things easier on install.
Reduce the risk of cross-threading bolts as well, an important consideration for a ham-handed monkey like myself
Reduce the risk of cross-threading bolts as well, an important consideration for a ham-handed monkey like myself
Last edited by BudgetPlan1; Jul 31, 2007 at 08:29 AM.
Drifting
Joined: Oct 2004
Posts: 1,384
Likes: 8
From: Southwest Virginia
Factory bolts are fine for factory gaskets. Like said above, use early model factory GM round port gaskets. Order them for a 99 coupe and you will get the correct gasket. Later oval port gaskets won't always seal under a header. The normal "header" gasket is a fiber type gasket that will compress and move around over time causing leaks. With these type gaskets you NEED some type of locking header bolt because they WILL come loose over time. The factory GM gaskets are MLS (Multi Layer Steel) and will not compress or move around once tight. So with these gaskets the factory gaskets are fine and will stay tight. BUT, like also said above, it is easy to cross-thread a factory bolt while installing headers. NEVER try to pull the header up with a bolt. Rule of thumb is to make sure you can turn the bolt in at least two turns with you fingers before you even reach for a wrench!
BTW: Maybe your question should have been "What headers"? Shorties normally won't give you much and are not worth the trouble, unless you are forced to use them for emissions reasons, you should look into real headers with real gains. Surprisingly long tube header are very easy to install on these cars.
BTW: Maybe your question should have been "What headers"? Shorties normally won't give you much and are not worth the trouble, unless you are forced to use them for emissions reasons, you should look into real headers with real gains. Surprisingly long tube header are very easy to install on these cars.
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Safety Car
Joined: Jun 2006
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From: Wildomar CA
I go with aftermarket metal f-body gaskets. I put in the bolts on the far outside to hold the header in place. I then slip the gasket in from above, they are designed to slip in with these bolts in place, eliminating a need to try and hold headers, gasket, and bolts all at the same time. I tighten down the 2 outside bolts and then put in the rest. I've never even had a bolt TRY to cross thread and I'm on my second set of LT's
Safety Car
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From: Wildomar CA
Team Owner
Joined: Mar 1999
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From: At the beach in little Rhody
Le Mans Master
Joined: Nov 2006
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From: enterprise al
St. Jude Donor '08
i plan on installing bassani lts this weekend.. i ordered some hooker gaskets from auto zone for like 17 bucks and havnt gotten them yet, but does anyone know if they will fit fine and create a nice seal with the bassani headers? from the picture they pulled up, it looks identical to the layout of the bassani's bolt up pattern.. thanks guys!
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
i plan on installing bassani lts this weekend.. i ordered some hooker gaskets from auto zone for like 17 bucks and havnt gotten them yet, but does anyone know if they will fit fine and create a nice seal with the bassani headers? from the picture they pulled up, it looks identical to the layout of the bassani's bolt up pattern.. thanks guys!
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
Yes, the GM gaskets as mentioned are the older style with round ports. I believe there was a recent part number change, but I just put a set on during the clutch install.
Le Mans Master
Joined: Sep 2003
Posts: 6,276
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From: Farmington CT
Cruise-In VII Veteran
i plan on installing bassani lts this weekend.. i ordered some hooker gaskets from auto zone for like 17 bucks and havnt gotten them yet, but does anyone know if they will fit fine and create a nice seal with the bassani headers? from the picture they pulled up, it looks identical to the layout of the bassani's bolt up pattern.. thanks guys!
American Racing are our choice of headers
LG and Kooks are also popular choices
stock OE GM bolts do a great job, just start in the middle and get all started before cranking them down
Intermediate
Joined: Dec 2005
Posts: 30
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From: Vantaa
Ok. I would appreciate if somebody could tell me the right part number for those GM gaskets (with round ports), thanks.
Le Mans Master
Joined: Nov 2006
Posts: 7,021
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From: enterprise al
St. Jude Donor '08
I have installed dozens of C5/6/C6Z06 LT's, I have never installed those, but know someone who has, not a good setup from what I heard
American Racing are our choice of headers
LG and Kooks are also popular choices
stock OE GM bolts do a great job, just start in the middle and get all started before cranking them down
American Racing are our choice of headers
LG and Kooks are also popular choices
stock OE GM bolts do a great job, just start in the middle and get all started before cranking them down
hah jk but in all seriousness, i bought these used as a whole setup for a pretty good deal and i refuse to shell out over a grand for headers(way too much in my belief, or at least my budget). hopefully the install will go problemless, if not, then i will do like any likeminded person, i'll turn to the forum for help!
Le Mans Master
Joined: Sep 2003
Posts: 6,276
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From: Farmington CT
Cruise-In VII Veteran
i appreciate the biased response hah jk but in all seriousness, i bought these used as a whole setup for a pretty good deal and i refuse to shell out over a grand for headers(way too much in my belief, or at least my budget). hopefully the install will go problemless, if not, then i will do like any likeminded person, i'll turn to the forum for help!
hah jk but in all seriousness, i bought these used as a whole setup for a pretty good deal and i refuse to shell out over a grand for headers(way too much in my belief, or at least my budget). hopefully the install will go problemless, if not, then i will do like any likeminded person, i'll turn to the forum for help!