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Will FLP long tube headers on a LS1 all fit into my iroc?

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Old Nov 4, 2003 | 09:30 PM
  #1  
jcurrieirocz's Avatar
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From: PE, Canada
Car: '81 Trans Am
Engine: 6.6L
Transmission: auto 350
Will FLP long tube headers on a LS1 all fit into my iroc?

will those headers work in a LS1 swap if i make my own y?
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Old Nov 6, 2003 | 01:16 AM
  #2  
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From: Phoenix, AZ
Car: '82 Z28
Engine: 350HO
Transmission: M4
Thats a big negative.
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Old Nov 6, 2003 | 07:58 PM
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thanks
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Old Feb 6, 2004 | 09:27 PM
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From: St. Louis, MO
Car: '91 GTA
Engine: 402ci LS2
Transmission: faceplated T56
Axle/Gears: 9" w/ 4.11's
But does anyone know this or is everyone just speculating?? Just curious.
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Old Feb 16, 2004 | 07:21 AM
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From: Annandale, VA
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It can not be done. You will need to fab a set of customs. Thirdgen and 4th gen cars have different floor pans.
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Old Feb 16, 2004 | 10:04 AM
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
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Originally posted by wm_sorg
It can not be done. You will need to fab a set of customs. Thirdgen and 4th gen cars have different floor pans.
wm_sorg is right here. They have differnt floor pans and different exhaust routing to clear stuff in and around the engine bay.
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Old Feb 22, 2004 | 10:07 PM
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From: St. Louis, MO
Car: '91 GTA
Engine: 402ci LS2
Transmission: faceplated T56
Axle/Gears: 9" w/ 4.11's
So anyone done this? Do MAC midlength LS1 headers fit 3rd gens?
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Old Feb 22, 2004 | 10:12 PM
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From: north plainfield, nj
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Transmission: A4
couldnt you use bbc headers? since they basiclly have the same space between the ports. or is the angels on the headers differnt?
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Old Feb 22, 2004 | 10:19 PM
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From: St. Louis, MO
Car: '91 GTA
Engine: 402ci LS2
Transmission: faceplated T56
Axle/Gears: 9" w/ 4.11's
Originally posted by Timz2882
couldnt you use bbc headers? since they basiclly have the same space between the ports. or is the angels on the headers differnt?
I dunno... doubt they would work though.
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Old Feb 22, 2004 | 10:19 PM
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From: north plainfield, nj
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Transmission: A4
yeah it was just a thought
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