converting a t top car to a hard top
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From: Staunton,illinois
Car: 1966 impala , 1998 sebring vert,1978 buick regal turbo, 1991 chevy silverado 3/4ton 4x4 lifted
Engine: 283, 2.5,3.8 turbo 350
Transmission: powerglide,auto overdrive, th350,4L80
yeah i wouldnt know why you would want to do that ???
I asked the same question on this board last year and got the same responses about 'Why would you do that?'. I asked for the same reason as you since the hardtop TTAs are hard to come by and expensive when you do. Some of the responses I received were good and I guess the job can be done. It sounded like a lot of work was required to do it right. I too thought you could just weld some metal in where the roof is now but no one else thought it was a good idea and said you would cut the whole roof off at the base of the windshield to do it right. I don't understand why the metal cannot be welded into the spot where the glass is now but again I am no auto body professional. Keep us posted on what you do.
I think for a quality job you need to replace the entire top. If just adding panels in, there would have to be alot of body filler added to get a smooth top. I think the large flat area really shows off imperfections, and add the fact that welding thin metal there will have to be some distortion. I have been looking for a hardtop TTA but the only I have found so far is almost 30K. I guess I'll just do without.
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From: Renton, WA
Car: 1985 Camaro, 1986 Trans Am
Engine: 5.0L carbed and 5.0L TPI
Transmission: TH700R4
Axle/Gears: 3.23 and 3.27 posi
I have actually thought about this as well. I hate my t-tops. They leak badly and around here the weather is only nice enough to take the tops off for a few weeks each year. I also think the hardtop cars have a 'cleaner' appearance.
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From: Deer Park, N.Y.
Car: 1983 z-28/SFC/bilsteins/adj.arms
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yeah....don't let these idiots change your mind. i have t-tops too and i also hate them. they leak, they're heavier, and they weaken the chassis. these guys all probably don't have t-tops. i think a GOOD body shop can do the job....even to the point where only you would know the car was a t-topper! these guys do miracles......it'll just cost you! anything is possible.......you've seen these fabrication shows on tv!!!....christ, they can make the Bat Mobile!!
HATE T-tops..
Man, I woud kill to have my car turned INTO a t-top car.........
Go to a respectable body shop, they will be more help then us, i've never seen or heard of it being done before
It's theoretical to just weld in some metal, smooth the edges and make everything seem stock, but again, it will be costly to do so....
Man, I woud kill to have my car turned INTO a t-top car.........

Go to a respectable body shop, they will be more help then us, i've never seen or heard of it being done before
It's theoretical to just weld in some metal, smooth the edges and make everything seem stock, but again, it will be costly to do so....
Joined: Dec 1999
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From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
I have t-tops and they are great. no leaks but, mine are a factory job not a pre dealer sent out one.
no problems for me and I have had my car for a very very long time.
as far more weight it is just barely more. and it won't slow you down
any one who buys a car with t-tops and hates them wtf? why buy the car then
I guess you will say I liked them untill I had it but it still makes me think???? why keep the car then??? seems simple but I guess it you not me
no problems for me and I have had my car for a very very long time.
as far more weight it is just barely more. and it won't slow you down
any one who buys a car with t-tops and hates them wtf? why buy the car then
I guess you will say I liked them untill I had it but it still makes me think???? why keep the car then??? seems simple but I guess it you not me
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From: Renton, WA
Car: 1985 Camaro, 1986 Trans Am
Engine: 5.0L carbed and 5.0L TPI
Transmission: TH700R4
Axle/Gears: 3.23 and 3.27 posi
Originally posted by 88 350 tpi formula
I have t-tops and they are great. no leaks but, mine are a factory job not a pre dealer sent out one.
no problems for me and I have had my car for a very very long time.
as far more weight it is just barely more. and it won't slow you down
any one who buys a car with t-tops and hates them wtf? why buy the car then
I guess you will say I liked them untill I had it but it still makes me think???? why keep the car then??? seems simple but I guess it you not me
I have t-tops and they are great. no leaks but, mine are a factory job not a pre dealer sent out one.
no problems for me and I have had my car for a very very long time.
as far more weight it is just barely more. and it won't slow you down
any one who buys a car with t-tops and hates them wtf? why buy the car then
I guess you will say I liked them untill I had it but it still makes me think???? why keep the car then??? seems simple but I guess it you not me
The t-tops are a minor issue. Supreme Member
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From: Staunton,illinois
Car: 1966 impala , 1998 sebring vert,1978 buick regal turbo, 1991 chevy silverado 3/4ton 4x4 lifted
Engine: 283, 2.5,3.8 turbo 350
Transmission: powerglide,auto overdrive, th350,4L80
Originally posted by wdigitog
yeah....don't let these idiots change your mind. i have t-tops too and i also hate them. they leak, they're heavier, and they weaken the chassis. these guys all probably don't have t-tops. i think a GOOD body shop can do the job....even to the point where only you would know the car was a t-topper! these guys do miracles......it'll just cost you! anything is possible.......you've seen these fabrication shows on tv!!!....christ, they can make the Bat Mobile!!
yeah....don't let these idiots change your mind. i have t-tops too and i also hate them. they leak, they're heavier, and they weaken the chassis. these guys all probably don't have t-tops. i think a GOOD body shop can do the job....even to the point where only you would know the car was a t-topper! these guys do miracles......it'll just cost you! anything is possible.......you've seen these fabrication shows on tv!!!....christ, they can make the Bat Mobile!!
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From: Huntington Beach, CA
Car: 87 IROC 92 Z-28 91 Ragtop
Engine: 5.7
Transmission: 700-r4
Originally posted by thegeneral
idiots?? your the one that bought a t-top car and you dont like it so you are pissed at the world because someone tells you that itll be a very expensive job to make into a hard top and better yet you could just sell your car and find one with out t-tops..duh...and they are heavier ? and weaken the chassis ? and if they leak why dont you take your lazy azz out and change the seals or are you just an idiot?? .lol.....he asked in his first post I was just curious if anybody here has turned there t top car into a hardtop by welding a new roof panel in? and he got quite a few answers before you come on here spewing **** like that calling everyone else idiots .........lol:rolleyes:
idiots?? your the one that bought a t-top car and you dont like it so you are pissed at the world because someone tells you that itll be a very expensive job to make into a hard top and better yet you could just sell your car and find one with out t-tops..duh...and they are heavier ? and weaken the chassis ? and if they leak why dont you take your lazy azz out and change the seals or are you just an idiot?? .lol.....he asked in his first post I was just curious if anybody here has turned there t top car into a hardtop by welding a new roof panel in? and he got quite a few answers before you come on here spewing **** like that calling everyone else idiots .........lol:rolleyes:
Last edited by Duck; Jun 7, 2004 at 10:22 AM.
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From: Los Angeles, CA/San Diego
Car: 1982 Pontiac Trans Am
Engine: Stock carbed 305
Transmission: Stock 200C
Its gonna cost you at least a couple thousand if not more to do that. You might as well sell the TTA and buy a hardtop TTA because it will end up costing about the same with the money you spend to convert it. Either that or get a hardtop TA and swap all your TTA stuff into it, might actually be cheaper just time consuming, obviously you don't care about keeping your TTA intact that it shouldn't be that big a problem. Its not hard to find a real cheap TA and you might end up making some profit if you end up selling all the parts you took off a the TA. No matter how you look at it its gonna cost you.
trophystock
You aren't gonna find the answers you seek in this forum, or any other forum for that matter because the procedure of turning a t-top car into a hardtop car is just so rare that nobody does it....
However call around a few bodyshops and go get some estiamtes, it will yield you better answers....
Good luck, but the TTA make not be a "trophy stock" car anymore.........
You could always sell it to me for a nice price.....
You aren't gonna find the answers you seek in this forum, or any other forum for that matter because the procedure of turning a t-top car into a hardtop car is just so rare that nobody does it....
However call around a few bodyshops and go get some estiamtes, it will yield you better answers....
Good luck, but the TTA make not be a "trophy stock" car anymore.........
You could always sell it to me for a nice price.....
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From: Huntington Beach, CA
Car: 87 IROC 92 Z-28 91 Ragtop
Engine: 5.7
Transmission: 700-r4
Originally posted by ljnowell
duck-- read the posts again, I believe someone else starting calling everyone idiots. Are you looking for some or what?
duck-- read the posts again, I believe someone else starting calling everyone idiots. Are you looking for some or what?
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From: Vermillion, South Dakota
Car: 2002 Camaro SS
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Well I have always thought hard top cars looked cooler but t-tops can be nice to... You will also run into a lot of problems with t-tops espically if you have high HP. But if you want to convert I think it would be easiest to take it to a bodyshop and see what they can do and how much it would cost... ive heard its pretty spendy so depending on how bad you want a hard top I would just keep the tops man.
Lets see, you pick one with the general in another thread, which I am sorry but anyone that does that (the topic of the other thread) is a hack. Then you come in here and start some crap. I dont see where on this thread the general started anything. Didnt see it in the other thread either.
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I'd say the main reason you'd be better off IF you absoulutely must ruin that car by doing this, with a whole roof from a hardtop car, is that the whole weatherstrip channel area that bolts to the roof line would be a huge pain to duplicate, along with you or a shop only having to join the two small areas of the a pillars with the frame rail at the base of the windshield rather than along the whole top of the roof. However i would recommend preserving a rare car, and swap the parts into another shell, maybe put the tta body itself in a big plastic bag in your back yard
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From: Huntington Beach, CA
Car: 87 IROC 92 Z-28 91 Ragtop
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Transmission: 700-r4
Re: converting a t top car to a hard top
Originally posted by trophystock
I was just curious if anybody here has turned there t top car into a hardtop by welding a new roof panel in?
I was just curious if anybody here has turned there t top car into a hardtop by welding a new roof panel in?
As for honest answers, I see a lot of people that dont give a damn about thier cars get out the caulking and go to town on the t-tops. I have seen people buying and selling entire roof panels all the way down the pillars for converting a hardtop to t-tops, so i dont see why you couldnt do it in the opposite fashion. I cant see it being cost effective, but that doesnt necessarily matter sometimes. I went to all of the trouble to convert my v6 to a v8, because it was my car, and I like it. If you are attached to your car that much, it may be worth it to you.
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From: Cove, Arkansas
Car: 85 Camaro SC
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There is a member on here who did the hardtop to ttop on his 88ish Iroc. I cant remember his name but I remember he has a prowler, 4th gen, and a few other vehicles.
His Iroc was originally a hardtop, then he made it into a ttop, then he made it into a convertable. Its red with flames soooo sooo sweeet
Cutting the roof is rather simple if you make the cut on the b pillars where the braze is between the roof line and the rear quarter panel. That spot was the same for every 3rdgen as far as I know so you at least have a base point on the b pillars. Then for the a pillars you could either make a high cut 6 inches below the roof line or you could replace the whole a pillar. Then all thats left is making an equal cut and re welding on both sides.
His Iroc was originally a hardtop, then he made it into a ttop, then he made it into a convertable. Its red with flames soooo sooo sweeet
Cutting the roof is rather simple if you make the cut on the b pillars where the braze is between the roof line and the rear quarter panel. That spot was the same for every 3rdgen as far as I know so you at least have a base point on the b pillars. Then for the a pillars you could either make a high cut 6 inches below the roof line or you could replace the whole a pillar. Then all thats left is making an equal cut and re welding on both sides.
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From: Deer Park, N.Y.
Car: 1983 z-28/SFC/bilsteins/adj.arms
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Axle/Gears: 3.42 torsen posi, baer discs
just to educate the other members: some of us have a great third gen example ( great engine, good interior, tight chassis ) and would rather not take a chance on buying a potential lemon. some of us have already put in a healthy investment of both time and money into our cars...and we also know we won't be getting that investment back when we sell! all we want is a healthy discussion and to immediately declare a mod as a waste of time is not helpful. now, i apologize for calling the desenters "idiots"....i did not mean it. i was just upset that people out there can dismiss an idea outright without discussions. this forum is meant to be helpful....sorry again..but i still think it can be done....expensive, but doable.
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Originally posted by wdigitog
just to educate the other members: some of us have a great third gen example ( great engine, good interior, tight chassis ) and would rather not take a chance on buying a potential lemon. some of us have already put in a healthy investment of both time and money into our cars...and we also know we won't be getting that investment back when we sell! all we want is a healthy discussion and to immediately declare a mod as a waste of time is not helpful. now, i apologize for calling the desenters "idiots"....i did not mean it. i was just upset that people out there can dismiss an idea outright without discussions. this forum is meant to be helpful....sorry again..but i still think it can be done....expensive, but doable.
just to educate the other members: some of us have a great third gen example ( great engine, good interior, tight chassis ) and would rather not take a chance on buying a potential lemon. some of us have already put in a healthy investment of both time and money into our cars...and we also know we won't be getting that investment back when we sell! all we want is a healthy discussion and to immediately declare a mod as a waste of time is not helpful. now, i apologize for calling the desenters "idiots"....i did not mean it. i was just upset that people out there can dismiss an idea outright without discussions. this forum is meant to be helpful....sorry again..but i still think it can be done....expensive, but doable.
Doable ? yes.
Reasonable ? You'd have to be a moron.
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From: Huntington Beach, CA
Car: 87 IROC 92 Z-28 91 Ragtop
Engine: 5.7
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Originally posted by Z28*****
Doable ? yes.
Reasonable ? You'd have to be a moron. :nod:
Doable ? yes.
Reasonable ? You'd have to be a moron. :nod:
Last edited by Duck; Jun 10, 2004 at 10:47 AM.
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Car: 93 240SX
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Originally posted by Duck
Some people say it's also moronic to drive decade-old cars instead of new, fuel-efficient and environmentally-friendly automobiles...
Some people say it's also moronic to drive decade-old cars instead of new, fuel-efficient and environmentally-friendly automobiles...
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From: Huntington Beach, CA
Car: 87 IROC 92 Z-28 91 Ragtop
Engine: 5.7
Transmission: 700-r4
Originally posted by Z28*****
And some people just like to try to contradict what people who work on these cars everday say :confused:
And some people just like to try to contradict what people who work on these cars everday say :confused:
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