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11-05-2009, 09:57 AM
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#1
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Join Date: Apr 2006
Location: Landing, NJ
Posts: 1,042
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? about longtubes.
im just double checking before i actually do it, but does longtubes fit if you have a t56, im talking about my 88 iroc i have a t56 and i was wondering if longtubes would clear everything. i know with the t5's they don't.
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87 Trans Am 5.7, Auto, posi disc rear, flowmaster muffler, all org car.
88 Iroc-Z TPI, Cammed 350, Vortex Heads, Magnaflow, T5, 4 Wheel Disc, 3.27 9 Bolt PBR.
91 Trans Am VertTPI 350. 700r4, K&N Air Cone, Ryven Muffler.
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11-05-2009, 10:46 AM
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#2
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Join Date: Apr 2008
Location: Delran
Posts: 6,785
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im not sure about gen 1 but i do know that on ls swapped cars in thirdgens they need specific headers.
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11-05-2009, 10:51 AM
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#3
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Join Date: Apr 2006
Location: Landing, NJ
Posts: 1,042
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yea i know, i heard around that you can, but like i said before i go threw it i just want to make sure if it is possible or not.
__________________
87 Trans Am 5.7, Auto, posi disc rear, flowmaster muffler, all org car.
88 Iroc-Z TPI, Cammed 350, Vortex Heads, Magnaflow, T5, 4 Wheel Disc, 3.27 9 Bolt PBR.
91 Trans Am VertTPI 350. 700r4, K&N Air Cone, Ryven Muffler.
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11-05-2009, 12:11 PM
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#4
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Join Date: Mar 2009
Location: S. Orange
Posts: 140
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Which LT's and what size collector? To my knowledge they should fit. My car, a 86, used to have a T5 with Hooker LT's. Now I have a th-400 which is wider then a T5 and the headers still fit. Maybe I missing something with the bellhousing and clutch set up....but it should work....please correct me if i'm wrong.
The only mods I had to do were, fab up a custom y pipe and fasten the speedo cable to the tunnel so it didn't contact the collector or new y pipe.
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11-08-2009, 08:57 AM
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#5
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Stalker
Join Date: Aug 2004
Posts: 12,077
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the normal 3rd gen headers hit the slave cylinder on a T5, iirc, i think LT1 t56s have a similar issue.(LS1 t56s have the internal slave)
i put a 350tpi/t5 in an 88 monte and got LTs to fit with some work heating and bending them to clear, wasnt fun and i ended up just going to shorties.
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11-08-2009, 10:55 PM
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#6
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Join Date: Apr 2006
Location: Landing, NJ
Posts: 1,042
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what about the cheapo headman header longtubes will that give me a prob with the t56.
__________________
87 Trans Am 5.7, Auto, posi disc rear, flowmaster muffler, all org car.
88 Iroc-Z TPI, Cammed 350, Vortex Heads, Magnaflow, T5, 4 Wheel Disc, 3.27 9 Bolt PBR.
91 Trans Am VertTPI 350. 700r4, K&N Air Cone, Ryven Muffler.
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11-10-2009, 05:38 AM
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#7
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Stalker
Join Date: Aug 2004
Posts: 12,077
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i think all brands of LTs will have some clearence issues, especially ones that claim to fit even the 2nd gen f bodies, because they tuck up closer to the drivetrain to clear the different frames more.
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11-10-2009, 09:37 AM
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#8
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Join Date: Apr 2006
Location: Landing, NJ
Posts: 1,042
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ok. i guess ill just have to see and go from there. thanks guys.
__________________
87 Trans Am 5.7, Auto, posi disc rear, flowmaster muffler, all org car.
88 Iroc-Z TPI, Cammed 350, Vortex Heads, Magnaflow, T5, 4 Wheel Disc, 3.27 9 Bolt PBR.
91 Trans Am VertTPI 350. 700r4, K&N Air Cone, Ryven Muffler.
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