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Technical Converting a sedan to a hardtop?

Discussion in 'Traditional Customs' started by fyrffytr1, Jun 14, 2018.

  1. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 855

    fyrffytr1
    Member

    Would it be feasible to convert a 1950 Pontiac two door fast back sedan into a hard top? I would want to do away with the vent window. side 1.jpg
     
  2. 302GMC
    Joined: Dec 15, 2005
    Posts: 7,874

    302GMC
    Member
    from Idaho

    You'd have to cut the "B" post out to make a hardtop. Eliminating vent windows is kinda street roddy for here ...
     
  3. Latigo
    Joined: Mar 24, 2014
    Posts: 741

    Latigo
    Member

    Why? Looks great as is.
     
    Tri-power37 and Paul B like this.
  4. manyolcars
    Joined: Mar 30, 2001
    Posts: 9,194

    manyolcars

    You would need a hardtop parts car if your off topic brand made hardtops that year
     

  5. BJR
    Joined: Mar 11, 2005
    Posts: 9,915

    BJR
    Member

    The hard part is making the windows seal afterward. And welding the top of the doors to the roof may look funny. 50's cars had flippers in the roof that flipped down to seal the top to the windows.
     
  6. junkman8888
    Joined: Jan 28, 2009
    Posts: 1,035

    junkman8888
    Member

    The problem with GM cars of that era is the wind wing and the side glass follows a horizontal arc instead of being in line with each other, this would complicate eliminating the wing windows. If you look at pictures of the Matranga Mercury, the original car had wind wings, some of the copies do not. To me old customs doesn't look "complete" without wind wings. Best of luck with your project.
     
  7. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 12,690

    Johnny Gee
    Member
    from Downey, Ca

    A donor would be very helpful.
    [​IMG]
     
    VANDENPLAS and kidcampbell71 like this.
  8. philo426
    Joined: Sep 20, 2007
    Posts: 2,097

    philo426
    Member

    The car looks great as it is,are you sure you want to make into a hard top?
     
  9. it can be done "Angle Eye's" was converted to a hardtop, but if I remember correctly they used a 53/54 hardtop as a parts car to do the swap based on the dogleg of the rear quarter glass and the flapper areas.
    0669eb8638972b200824ba6f3bbaabd2--angel-eyes-pools.jpg
     
  10. Okay, let's say you get past the wind wings. There are some options there. Let's assume you have a good plan for the Roof Rail above the door glass. Now, what are your plans for quarter windows? I love Kustom stuff. Way back in 1971 I chopped a 50 Olds fastback. That was a Big Job in how I did it. That chop went clear to the Body panel below the deck lid. Same basic body you have there.
    The Wizzard
     
  11. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 855

    fyrffytr1
    Member

    I really appreciate all the replies and advice. Right now I'm in the "What do I want to do with this car" stage. I can't do any major body work and there are few to no shops near me that I would trust to take this project to. I just thought the hardtop would be something not seen much. But, listening to the words of wisdom from the more experienced folks here has changed my mind.
    So, here is what I have and Y'all tell me what you would do with it.h body is pretty straight but needs front floor pans and a trunk pan. I have a friend who can weld them in for me.
    It has a running straight 8 and I have an Edmonds dual carb intake for it. Manual tranny with 3 speed on the column.
    Give me some ideas but take into consideration I am on a budget and don't have a whole lot of money to work with.
     
  12. How about getting that nice car running just as is, when you drive it open all the windows, get over the fact that there is post there, and enjoy the fact you are driving a nice classic.

    Also please don't start this project only to not finish it and leave it to someone else to dispose of.
     
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  13. philo426
    Joined: Sep 20, 2007
    Posts: 2,097

    philo426
    Member

    Yes the car looks great as it us and with the dual carb set up should motorvate down the highway just fine!
     
    Hnstray likes this.
  14. Joe McGlynn
    Joined: Jul 14, 2016
    Posts: 82

    Joe McGlynn

    Chop it and lean the b-pillars forward!
     
  15. Roger O'Dell
    Joined: Jan 21, 2008
    Posts: 1,150

    Roger O'Dell
    Member

    To get rid of the vent window for a one piece door glass is ALMOST impossible, the door hinge protrudes in the area. The roof to to door area is just work. The quarter window is another problem, because of wheel well. When I hard topped my 48 cad sedanette, I made the quarter windows slide in from front to rear, windows down quarter glass in trunk. Almost forgot you will also need to brace the b pillars at the floor, you have just made it weak
     
  16. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 855

    fyrffytr1
    Member

    Thanks for the advice, again. I mounted some new tires on it today just to see how it looks. The tires are cheap 205/70/15 on Ford 5X5 rims. The beauty rings were in the trunk when I got the car so I polished them up and, despite being dinged up, I like them.Maybe chrome lug nuts or a center cap of some type. I also think it would look better dropped maybe 2"s in front and 1" in the rear. I am open to suggestions so keep them coming.
    Oh yeah, as for completing this car, as long as the Good Lord lets me stay here I will work on it. The 67 GTO in my avatar took me 7 years to complete but my plans for the 50 are not as detailed as the GTO was.
    If the car looks a little off it is because the passenger side is still on wheel dollys and sits about 6"s higher on that side. I didn't have time to pull the car off the wall and replace the passenger sides because I had to get the GTO back in the shop before the rain came.
    new tires 2a.jpg new tires 4a.jpg
     
  17. philo426
    Joined: Sep 20, 2007
    Posts: 2,097

    philo426
    Member

    Very cool lines.I like the chrome spear that drops towards the rear quarter!
     
  18. adam401
    Joined: Dec 27, 2007
    Posts: 2,857

    adam401
    Member

    With a donor car I bet that wouldn't be the worst job in the world. I think eliminating the vent windows would greatly complicate things more than discussed. The factory seals and trim have provisions to accept the vent window and eliminating them would add a lot of hassle making everything seal and look acceptable if it were to be a finished car. The devils in the details. I see the sheet metal work on that aspect of the project being the lesser of the evils and a lot of time being spent buttoning the glass and seals up.
    Secondly, that's an involved chop. I've never chopped a fastback but I've chopped other round cars and can tell you that for that to flow its gonna take considerable work in the trunk surround area.
    All doable stuff but man if your not doing it yourself its gonna cost you big. That being said it costs to be the boss so if its what you want then go for it. Start hunting a parts car. Good luck
     
  19. adam401
    Joined: Dec 27, 2007
    Posts: 2,857

    adam401
    Member

    The more I look at it might be more straight forward to convert a 2 door hardtop to a fastback rather than transfer the had top stuff to a fastback
     
    Hnstray likes this.
  20. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,660

    Rusty O'Toole
    Member

    It would be a lot easier to just buy a hardtop. They did make a 1950 Pontiac hardtop.

    You are wise not to over match yourself. Taking everything into consideration, you might want to fix the obvious things like floor, tires, brakes etc and put the car on the road. Keep working on the basics like brakes, suspension, steering, shocks, engine until you have a good road car then start thinking about modifications.

    Once it is on the road you may find you are having so much fun all you need is a black primer paint job and some mexican blankets on the seats.
     
    Unkl Ian likes this.
  21. Roger O'Dell
    Joined: Jan 21, 2008
    Posts: 1,150

    Roger O'Dell
    Member

    I didn’t see where he wanted to chop his car . On my cad the chop took 2 1/2 hours to cut and tack the roof, but the trunk/decklid took a month to get where I liked it.
     
  22. jimmy six
    Joined: Mar 21, 2006
    Posts: 14,932

    jimmy six
    ALLIANCE MEMBER

    I have a friend with a 51 Merc who had it chopped by Dean in SoCal. It has slide in rear windows and front have the same rear arch as the front of the slide in. I don't remember what the doors looked like. Sorry no Picts.
     
  23. 'Mo
    Joined: Sep 26, 2007
    Posts: 7,432

    'Mo
    Member

    I'll tell you what.
    The "Crimson Skull" was one of Eldon Titus' signature works. He was quoted as saying that the leaning door posts was one of his favorite modifications (and this cat did it ALL!!!).

    [​IMG]

    BUT!... That Poncho of yours is a great piece as is. The round front wheel wells set it apart from similar Chevies, AND... what could be Kooler than an Edmunds equipped, split pipe straight 8? :cool::cool::cool:
    Don't go chasin' rainbows.
     
    Last edited: Jun 15, 2018
  24. With no skills, no budget, no trust,
    I'd just drive the shit out of it.
    I have the skills, dough, and trust so I'd fix the floors myself and then just drive the shit out of it.

    Way way way easier to get a hard top if that's what you want. You'd be years and years ahead and a lot more happier. Fix that one to enjoyable and flip it
     
    j hansen and Pist-n-Broke like this.
  25. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    No Skills + No budget = leave it as it is. By the way, there is nothing wrong with the way it is.
    The Wizzard
     
    Unkl Ian likes this.
  26. Fast backs never came as a hard top

    Cool looking car
    Leave it alone
     
  27. BJR
    Joined: Mar 11, 2005
    Posts: 9,915

    BJR
    Member

    Count me in for leaving it alone if you don't have the skills to do it yourself. Here is my Buick with a 2 1/2" chop. 1949 Buick .jpg
     
  28. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 855

    fyrffytr1
    Member

    Once again, thanks for the replies. I don't plan on chopping the car, just lowering it.
     
  29. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 855

    fyrffytr1
    Member

    Just to be clear, when you say split pipe do you mean splitting the exhaust pipe and running duals or splitting the exhaust manifold? Has anyone ever built a split exhaust manifold?
     

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