LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

lt1 heders

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Old Dec 7, 2007 | 08:41 AM
  #1  
87tpi350,6spd's Avatar
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From: Allentown, PA
Car: 87 Trans am
Engine: 350tpi
Transmission: 6spd
Axle/Gears: 4.10
lt1 heders

I have edelbroc hedders currently on my tpi and I am going to be doing the lt1 swap some time in the near future as money permits. Will they fit or do I have to buy the hedemin ones.
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Old Dec 7, 2007 | 08:53 AM
  #2  
Thirdgen89GTA's Avatar
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From: Chicagoland Suburbs
Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
Transmission: M28 T56
Axle/Gears: 3.23 10bolt waiting to explode.
Re: lt1 heders

Headers made for an 4th gen will not fit a thirdgen. This has been discussed many times on these boards.

You will need to use headers built for a 3rd gen car, even when a LTx engine has been dropped in.
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Old Dec 7, 2007 | 10:45 AM
  #3  
Z28ricer's Avatar
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Re: lt1 heders

Please read, think, then post.

Yes your TPI (hey thats where we know his headers are thirdgen) headers will fit, the edelbrocks arent ideal for the port alignment as i've checked and they dont fully surround the port, however they do not leak, and are ideal when fabricating a/c lines, a/c lines with SLP headers or most of the others would be a pita IMO without a tubular K.

Originally Posted by Thirdgen89GTA
Headers made for an 4th gen will not fit a thirdgen. This has been discussed many times on these boards.

You will need to use headers built for a 3rd gen car, even when a LTx engine has been dropped in.
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Old Dec 7, 2007 | 01:05 PM
  #4  
87tpi350,6spd's Avatar
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From: Allentown, PA
Car: 87 Trans am
Engine: 350tpi
Transmission: 6spd
Axle/Gears: 4.10
Re: lt1 heders

Ok thanks a lot. I don't think I will be running ac but good to know.
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