t-top to targa conversion
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Junior Member
Joined: Mar 2004
Posts: 20
Likes: 0
From: New Mexico
Car: 1988 IROC-Z28
Engine: 350 TPI
Transmission: 700R-4
Axle/Gears: 3.45 borg warner
t-top to targa conversion
I was thinking about having my t-top Iroc converted to a solid targa top. I think the targa looks really clean. Of course I would get some sub-frame connectors and a roll-cage. Has anyone done a t-top to targa conversion. I would love to see some pics
Joined: Nov 2002
Posts: 3,466
Likes: 5
From: MA, USA
Car: 83 bird
Engine: 305/383
Transmission: WC T5
Axle/Gears: 3:42
There was a guy on the boards that took a T-top car and was making it into a targa. He got it from the parts yard... one hell of a project!
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Joined: Mar 2003
Posts: 479
Likes: 0
From: delaware
Car: 1990 Formula
Engine: 305 TBI (LO3)
Transmission: 5 speed manual
It has been successfully completed by at least one member on here...it looks real nice. I'm sure you can find it if you feel like searching, this comes up pretty often.
Supreme Member
iTrader: (33)
Joined: Jul 2000
Posts: 5,945
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
More then 1 person doing it.
I have the mold almost done to do fiberglass or carbofiber top.
DOing TONS of mods. complete 4thGen Int.
Replacing the Front bumper cover since I tore mine off.(hence the 86gfx)
HOK cobalt blue kandy paint.
418 single turbo motor, tubular k member and a-arms.
8 point cage.
Been collecting all the parts. now to find TIME to finish it all.
All old pic's I'll have to get some current ones.
I have the mold almost done to do fiberglass or carbofiber top.
DOing TONS of mods. complete 4thGen Int.
Replacing the Front bumper cover since I tore mine off.(hence the 86gfx)
HOK cobalt blue kandy paint.
418 single turbo motor, tubular k member and a-arms.
8 point cage.
Been collecting all the parts. now to find TIME to finish it all.
All old pic's I'll have to get some current ones.
Supreme Member
Joined: Jul 2001
Posts: 2,760
Likes: 0
From: Cove, Arkansas
Car: 85 Camaro SC
Engine: V6
Transmission: 700r4
I'm doing the conversion as well. I pulled mine from the junkyard
I've been piddleing around with the project now and then because I havent had the time to really get to work on it.
BTW, Trailblaze has done the conversion. He posted a few times with some nice pics.
I've been piddleing around with the project now and then because I havent had the time to really get to work on it. BTW, Trailblaze has done the conversion. He posted a few times with some nice pics.
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Joined: Nov 2002
Posts: 256
Likes: 0
From: Kenner, La
Car: '86 iroc
Engine: lb9 305
Transmission: 700r4
Originally posted by Screamin'87GTA
im in the middle of my conversion, but here is a pic
im in the middle of my conversion, but here is a pic
Supreme Member
Joined: Jul 2001
Posts: 2,760
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From: Cove, Arkansas
Car: 85 Camaro SC
Engine: V6
Transmission: 700r4
Originally posted by IROC_5796
but where do you get the roof panel from???????
but where do you get the roof panel from???????
originally posted by Kandied91z
the only thing i question is wind noise while driving...
the only thing i question is wind noise while driving...
Course one could eaisly make a miniscule wind foil about a few millimeters thick and 1/8th of an inch high above the roof's surface where the wind will be forced to go over the leading edge of the targa top. That would solve some wind related issues.
I attached a pic, sorry for the lack luster drawing I cant draw.
Senior Member

Joined: Sep 2002
Posts: 613
Likes: 0
From: Canada winnipeg
Car: '91 vert RS, '82 Z28
Engine: TBI 305, TPI 350
Transmission: Auto, 5 speed
nice pic, free hand ic...
anybody know this guy whistler from camaroz28.com, supposedly he has a targa done with carbon fiber, i cant seem to find any pics oh it though.
anybody know this guy whistler from camaroz28.com, supposedly he has a targa done with carbon fiber, i cant seem to find any pics oh it though.
Senior Member
Joined: Dec 2003
Posts: 671
Likes: 0
From: North Olmsted, OH
Car: 1984 Pontiac Trans Am WS6
Engine: H.O. 305 5.0L;L69
Transmission: T-5; Axle Ratio 3.73
Heck....TPl383 I'm in Ohio too. If you can get it to work well and look good. I'd drive down by you and pay you to do the conversion for me.
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Joined: Jul 2000
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
It wont be any worse then a vette Targa top or a vert top for wind noise. Im using the stock T top type pin latches for the rear and the identical setup in the front from a vert.
Use a vert gasket in the front. and a 1piece seal around the back also.
The top is custom made. Im doing one outa fiberglass 1st to work out all the little bugs. Then Im doing one outa carbon fiber. Painted body color. and one outa Smoked lexan. like stock 92Z t tops.
I belive whistler paid a company to do his and upwards in the 3-5k$$ range.
ksrammstein,
Its deff a big project. something you need to think about and make sure you want to do. Id recomend you add SFC's and any extra bracing you can. if your seriouse drop me a e-mail thats listed below in my sig. and I'll arrage a time for you to come check out mine in person.
Use a vert gasket in the front. and a 1piece seal around the back also.
The top is custom made. Im doing one outa fiberglass 1st to work out all the little bugs. Then Im doing one outa carbon fiber. Painted body color. and one outa Smoked lexan. like stock 92Z t tops.
I belive whistler paid a company to do his and upwards in the 3-5k$$ range.
ksrammstein,
Its deff a big project. something you need to think about and make sure you want to do. Id recomend you add SFC's and any extra bracing you can. if your seriouse drop me a e-mail thats listed below in my sig. and I'll arrage a time for you to come check out mine in person.
Originally posted by ES87iroc
Oh no, not this -again-.
To answer your question, several folks doing it, none completed.
Oh no, not this -again-.
To answer your question, several folks doing it, none completed.
Member name: TribalDaze is you want to look it up for more pictures....info, etc....
There was a guy here at the local car craft show a few years ago with a 92 Z that had a targa top. the original t-top center piece came out of the car to make it a targa. what i mean is it could come out and go back in so the stock t-tops would still be able to be used.
Supreme Member
Joined: Oct 2001
Posts: 8,113
Likes: 6
From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Originally posted by Dave84Bird
There was a guy here at the local car craft show a few years ago with a 92 Z that had a targa top. the original t-top center piece came out of the car to make it a targa. what i mean is it could come out and go back in so the stock t-tops would still be able to be used.
There was a guy here at the local car craft show a few years ago with a 92 Z that had a targa top. the original t-top center piece came out of the car to make it a targa. what i mean is it could come out and go back in so the stock t-tops would still be able to be used.
Though you should really considera full cage. even with a typical roll bar if it goes over, that windows is gonna get crushed and slit open your check like a can opener.
Senior Member

Joined: Feb 2009
Posts: 874
Likes: 18
From: Brisbane, Australia
Car: 1985 Pontiac TransAM
Engine: 400SBC 24x conversion
Transmission: T700r Stage2 Shiftkitted
Axle/Gears: 2.77 9 Bolt
Re: t-top to targa conversion
this sounds awesome, but i do have one question...
Does anyone who has done this still have a leakproof car?
My main drive to do this is to eliminate leaking once and for all.
Does anyone who has done this still have a leakproof car?
My main drive to do this is to eliminate leaking once and for all.
Joined: Aug 2006
Posts: 12,804
Likes: 103
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: t-top to targa conversion
really old post
the weather stripping would have to be a totally custom job, and if its not done well, its going to leak. Thats probably a bigger project than actually doing the targa conversion
the weather stripping would have to be a totally custom job, and if its not done well, its going to leak. Thats probably a bigger project than actually doing the targa conversion
Senior Member
iTrader: (2)
Joined: Dec 2008
Posts: 990
Likes: 1
From: Peoria, IL
Car: 1988 Camaro Sport Coupe
Engine: 5.0 305 Carb'd
Transmission: 700R4
Axle/Gears: 3.23
Re: t-top to targa conversion
wow talk about digging lol
of these 5 guys that have "attempted" i have only seen maybe 3 cars in total that have it. im sure theres more but ive been here for a little over a year and only seen 3 pics of completed and functional ones. kinda makes me a wanna try it. it would be pretty simple if you had a good plan and knew a shop willing to cut and form the glass.
of these 5 guys that have "attempted" i have only seen maybe 3 cars in total that have it. im sure theres more but ive been here for a little over a year and only seen 3 pics of completed and functional ones. kinda makes me a wanna try it. it would be pretty simple if you had a good plan and knew a shop willing to cut and form the glass.
Re: t-top to targa conversion
Well does anybody who has a t-top car have a leakproof car? Maybe temporarily but eventually they all will leak.
Senior Member
Joined: Sep 2007
Posts: 568
Likes: 1
From: Leander,TX
Car: 84 Z28 / 88 Trans Am / 87 base
Engine: L69 H.O. / 468 BBC / 2.8 v6
Transmission: 89 700R4 / TH375B / 700R4
Axle/Gears: 3.73 open / 3.23 posi / 3.42 open
Re: t-top to targa conversion
Only because you dont maintain your tops. Our cars are no different than any other t-top car, If you dont keep the seals clean and softened then yes they will leak.
Re: t-top to targa conversion
For your information my t-tops don't leak but I know that eventually they will. I know that you can prolong the life of your seals but they are made of rubber and in time rubber breaks down. You can keep them clean and soft but there are other things to consider (baking in the sun, chemical breakdowns). So I stand by my original statement that t-tops will leak eventually.
Supreme Member
Joined: Oct 2001
Posts: 8,113
Likes: 6
From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: t-top to targa conversion
For your information my t-tops don't leak but I know that eventually they will. I know that you can prolong the life of your seals but they are made of rubber and in time rubber breaks down. You can keep them clean and soft but there are other things to consider (baking in the sun, chemical breakdowns). So I stand by my original statement that t-tops will leak eventually.
We got folks doing it all the time in the bike forum to make 20+ year old rubber intakes that turned into rocks, turn back into useful parts.
And no Im not tell you how smartazz. google
Senior Member
Joined: Sep 2007
Posts: 568
Likes: 1
From: Leander,TX
Car: 84 Z28 / 88 Trans Am / 87 base
Engine: L69 H.O. / 468 BBC / 2.8 v6
Transmission: 89 700R4 / TH375B / 700R4
Axle/Gears: 3.73 open / 3.23 posi / 3.42 open
Re: t-top to targa conversion
Hey Gumby, I think he took offense to what I said.

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