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Long tube headers 92 trans am 5spd

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Old Mar 18, 2003 | 03:52 PM
  #1  
1rare t/a's Avatar
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From: Ottawa, KS
Long tube headers 92 trans am 5spd

Has anybody put a set of long tube headers on their thirdgen with a 5 spd? I have heard that it can not be done, and that I will need a set of shorties.

thanks
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Old Mar 18, 2003 | 10:45 PM
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CETATornado's Avatar
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From: Madison, WI
Hmm, I'm also wondering about this...what about the car would necessitate shorties?
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Old Mar 19, 2003 | 08:10 AM
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From: Ottawa, KS
I am assuming that it would have something to do with the clutch fork and the tranny being different. I also heard that shortie headers will only give you about 1/3 to half the HP gain that long tubes will. So if I can go with long tubes or mid length, I would prefer to do that.
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Old Mar 19, 2003 | 05:20 PM
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Air_Adam's Avatar
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Sure it can be done. Hedman makes a set of long tubes for 3rdgen cars for about $110. It can be done, its just that ground clearance can be an issue because they dip down pretty low.
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Old Mar 19, 2003 | 06:21 PM
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The Hedman's won't fit with a 5 speed, unless you bend the collector down about 3/4 of an inch. My neighbor heated my set up with a torch and bent the collector downward to clear the part of the bellhousing that mounts the slave cylinder for the clutch. It can be done though, it just requires a lot of effort.
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Old Mar 19, 2003 | 08:20 PM
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Hodge's Avatar
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From: Louisville, KY
Car: 1987 IROC-Z28
Engine: 383 Vortec - carb
Transmission: T56 - 6speed
Hooker 2210's fit 5-speed Third gens and they are long tubes. Kinda pricey though.
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Old Mar 19, 2003 | 09:51 PM
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kfoley's Avatar
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From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
So all you have to do is bend the collector down? Are there any other modifications you have to make? I'm planning on going with the hedman longtubes this summer to replace my hooker shorties when I build my 406.
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Old Mar 20, 2003 | 07:44 AM
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All I had to do was bend the collector down. And, of course, get the pipes custom bent.
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Old Mar 20, 2003 | 03:47 PM
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From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
Ok, cool. Can I use the Moroso S pipes on them or will it have to be custom bent? I don't know of anyone in Indy that will custom mandrel bend pipe.
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Old Mar 20, 2003 | 04:01 PM
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I can't say with any certainty that the s-pipes will fit. I think someone used them however. It looks like they hang pretty low in the picture, but anything that you have bent will be low underneath the crossmemeber. To solve this, I'm in the process of building a double hump crossmember to gain some ground clearance.
Attached Thumbnails Long tube headers 92 trans am 5spd-26_23a.jpg  
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Old Mar 20, 2003 | 10:10 PM
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kfoley's Avatar
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From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
I'm running duals with hooker shorties right now and I have really low clearance. I'm hoping I can gain a little when I switch to longtubes and chambered mufflers from Stainless Steel Works. I might look into building a custom crossmember. Between my grandpa, dad and me we're pretty good at fabricating stuff like that. Is there any certain metal I should use for it? I've seen somebody's where he made it all out of like 1" square tubing or something like that.
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Old Mar 20, 2003 | 10:48 PM
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Check out www.crossmembers.com, and that's something like what I'm building. I have pics of someone that modified the stock x-member, which I'm also considering using pieces of. I believe G-force is using 2x3 1/8" wall box tubing for the center section and 1/2" plate steel for everything else. It seems very heavy duty, and somewhat of a pain to make unless you have the correct tools, but obviously it can take any abuse you might throw at it, plus gain some ground clearance.
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Old Mar 20, 2003 | 11:22 PM
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From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
Cool, actually I think I have most of the metal I need to make it laying around. Looks like a project...
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