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.

LSX exhaust question

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Old Jun 19, 2008 | 12:04 AM
  #1  
MN246's Avatar
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Car: 84 Z28
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LSX exhaust question

Does anyone know if a tubular k member is installed, is there room to route the driver's side exhaust under the motor between the oil pan and the k member? When I made my first post about the LSX swap, it was in the engine area. I didn't know there was a special section for these swaps.

I found a lot of the information I needed in the various sticky posts. Also, ghettocruiser has a lot of good information that has been very helpful. So far, I haven't found a very good answer to routing the y-pipe. If I can find a way to run the exhaust under the engine, I should be able to fabricate the needed pieces to make the stock y-pipe work. I've even considered fabricating my own k member and routing the exhaust through it. That would only be as an absolute last resort. I'd like to do all of this change over with off the shelf parts.

Also, I noticed somewhere that the 4th gen long tube headers won't work. Does anyone know where the problem areas are for these?
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Old Jun 19, 2008 | 07:40 AM
  #2  
cam-'s Avatar
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From: In the Garage
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Re: LSX exhaust question

Read the sticky... ALL of it... LOOK at the pics. You'll quickly have answers to this and all your other posts right? right
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Old Jun 19, 2008 | 08:11 AM
  #3  
razor's Avatar
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From: Saskatchewan
Car: 1992 GTA
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Re: LSX exhaust question

Mufflex is coming outwith a custom y-pipe to fit Hawk's long tubes for lsx swaps. Call and ask for Denny. He can explain more on the crossmembers they can accomidate with this Y. If you decide to ditch the manifolds and goto headers atleast you know you can have something thats now pretty much a bolt on system.
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Old Jun 19, 2008 | 09:19 AM
  #4  
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Re: LSX exhaust question

http://www.team3rdgen.com/modules/3rdGenLS1/kmember.htm
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Old Jun 19, 2008 | 11:48 AM
  #5  
cam-'s Avatar
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Re: LSX exhaust question

[QUOTE]http://www.team3rdgen.com/modules/3rdGenLS1/kmember.htm[/QUOTE


Alas whats this? From the sticky! Aha I knew I saw that somewhere :P
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Old Jun 19, 2008 | 05:32 PM
  #6  
MN246's Avatar
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Car: 84 Z28
Engine: 383
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Axle/Gears: 3.73/Strange 12 bolt
Re: LSX exhaust question

I'm not planning on keeping the A/C so that won't be an issue.
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Old Jun 19, 2008 | 07:13 PM
  #7  
MN246's Avatar
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From: Oregon
Car: 84 Z28
Engine: 383
Transmission: TKO 600
Axle/Gears: 3.73/Strange 12 bolt
Re: LSX exhaust question

Does anyone have any ideas concerning the fitment of 4th gen headers? I know there are supposedly problems, but what are they?
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Old Jun 19, 2008 | 07:21 PM
  #8  
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I can't say from personal experience, but what I understand is the undercarriage is different under the floor pan. 4th gen headers kick out right where the 3rd gen support member goes. Only way you could use them is with major tube mods, which will negate any savings from buying the 4th gen pieces.
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Old Jun 19, 2008 | 07:51 PM
  #9  
MN246's Avatar
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From: Oregon
Car: 84 Z28
Engine: 383
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Axle/Gears: 3.73/Strange 12 bolt
Re: LSX exhaust question

Thanks, that's what I was needing to know.
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