C3 "chop top"

T Rush

New member
Joined
Apr 18, 2011
Messages
2
anyone have some images or any experience with lowering the roof-line of a Stingray?

here is a `69 rear clip that I did a quickie practice chop on....the "basket handle" is moved back about 5" and down about 2"....it also narrowed the base alittle less than 1" per side(giving a 'wide-body' effect)

20haxkw.jpg
vgh9p4.jpg
5aqgz6.jpg


I have a `72 coupe(seen in the background, the brown one without the front clip on it, not the `74 vert also in my garage) that I would like to try this on...the idea would be to do a 'one piece' removable targa top panel, and instead of trying to cut down the windshield I would slant it back to lower the forward roof line to match the back....the side roll up/down windows would be taken out, and replaced with a framed removable plastic window with sliding panel(lining up flush with the back b pillar of the "basket handle" as it moved in)...tho I see it as being used mostly 'open air' I do want the closed top coupe to fully show the lowered top

...I'm guessing this isn't a popular mod due to the already limited headroom of the C3, but I will also be lowering the floors(no under car exhaust to clear) as well as a complete custom 'built in' interior and seats to give more breathing room with the lower roof and jutting back windshield
 
Last edited:
Welcome to the motley crew.....

Nice efforts there man, looking good, keep us updated....:D:friends:
 
Here is a convertible with a chopped top. Some other subtle changes to the body also.

vert.jpg

73_4.jpg
 
OK< how did you DO that?? my top is trash anyway, so......

why NOT??

:friends::crutches:
 
abomination that's here in the netherlands

DSC00350.jpg
 
abomination that's here in the netherlands

OK, lets go with the roof line and leave the rest alone, was the windshield altered?? if so what glass was used??

then what convertible top maybe possible??

what about side windows??

:crutches::waxer::friends:
 
Sure that will look pretty cool and slick.
Seems like not a easy and major modification.

What you will do with the removable rear window ?

And when lowering the seats you still will have enough sight out over the front ?
As you plan anyway to redo your seats why don't make the back pretty thinn and change the angle of the back to get also more headspace without lowering te seats.

Good luck with that project.
And keep us updated.

Greets
Robert
 
Sure that will look pretty cool and slick.
Seems like not a easy and major modification.

What you will do with the removable rear window ?

And when lowering the seats you still will have enough sight out over the front ?
As you plan anyway to redo your seats why don't make the back pretty thinn and change the angle of the back to get also more headspace without lowering te seats.

Good luck with that project.
And keep us updated.

Greets
Robert

Well, as far as I am concerned, it's just a very vague idea at this point, looks very cool, trick is, modding the windshield and the worst over that is the glass....then the rest is figgering out wat canvas will fit the rag top frame without killing the project with some custom shit at 50K bux or worse....keep in mind, I no millionaire, so my shit is all basically junkyard hotrodding....:crutches::crap:
 
well said.... if you pay some 50K I'm sure you can get the top chopped, some custom glass and convertible top.... it could even include a shiny paint job... :lol:

ho-made stuff is fun .....
 
at first(and maybe still) I considered "raking" back the windshield of my `74 project convertible to chop the top...the frame for my top is good, but the back window and top material is shot...so all I was thinking of doing was to lowering/moving the folding top mounting points...and if the re-angling of the windshield was minor enough of only a few more degrees laid back, the whole top unit(frame, windscreen, and side windows) could all be kept 'in line' with stock relationships to each other, with only slight modification to the side window alignment in the doors(no window glass cutting at all) and the soft top back window, maybe a clearancing of the wheel well tops to allow the folded top to sit in lower...
...or so goes the theory anyway...

eh, might still happen, but I kinda hate molesting a pretty 'pure' vette vert that would be just fine with me if it only were reconditioned to stock...but if the headroom was any issue, those convertables are kinda claustrophobic with the stock height top up anyway, seems like the top would only have to be used for an emergency, otherwise top down driving would hardly be effected jf chopped


Welcome to the motley crew.....

Nice efforts there man, looking good, keep us updated....:D:friends:
thank you...yeah, I think some of my crazy thoughts/mod-ideas will be right at home here, as I've been lurking a bit and have seen what all you all are up to here:)hi: awesomeness :hi:)

Here is a convertible with a chopped top. Some other subtle changes to the body also.
thanks...great example of the windshield being "raked back"...and I think that shows why I want to do this...as it really makes the C3 look "zoomy":D


abomination that's here in the netherlands
thanks...also another good example(when only examining the top and windscreen!)...but yeah, I feel that you have to be very careful when messing with the already bold and exotic lines of the C3 body....getting too "erotic" like that isn't mandatory at all,,,,,tho it is interesting that they used a accessory hard top(option for convertibles) to chop and match the new rake of the windshield, can't quite see exactly where it was cut-n-lowered, almost need it pictured next to a stock one and maybe a rear view, also would like to see if a side window solution was applied


Gene, 6,5 and you want to lower the roof????

IF I can lower the seats....why not?? I already did drop the driver seat about 2+ inches....maybe drop the floor?

:crutches:
saw(on line) a project where a C3 floor was lowered(if I come across a link again I'll share it)...as long as you don't have the under car exhaust it didn't seem to be much problem at all ...looked like they did a pretty massive 3"~4" drop of the floor, that would be more than you would have to lower the roof, doing the top ~2" and the floor ~3" you might actually gain an inch in headroom


let me tackle these one at a time:
Sure that will look pretty cool and slick.
Seems like not a easy and major modification.
the `69 rear clip 'practice chop' top I did did not have any of the interior bits or metal hoop in it..... surprisingly it went down fast and easy, as the top lines on the 'window scoop' down to the body are actually parallel, so the top of the 'basket handle' can slide back and down without having to widen the top or reline those peaked edges ... with the top moved back, I split the sides of the 'basket handle' from the bottom up around the curve of the top near the side window opening and just spread that seam open to a missing pie-slice shape so the bottom was back forward up to the door jam...the sides of the top I just left long, and sunk them into the fenders, it was cut just above the fender curve 'troff'(where the fender blends up to the top's sides), but that left a bad gap(as the roof sides taper up, so the top looses width when lowered in), so I cut again now below the 'troff' in the fender top flat(so just that fender|top radius transitional strip was floating, tho still attached at the rear of the car), and bent that piece in to the smooth up to the top's sides, leaving the gap split where it could be smoothly pacthed in the flat fender top ... inside the scoop around the rear window got kinda messy, and I might cut that different next time, but still not sure if it would be better to cut higher in there to leave the scoop wider at the bottom(and then bend it in at the top) or cut lower to narrow the scoop around the window(as thats kinda what I had but filled it in as the cut ended up about the the middle, but then had to fill a bunch)...once everything was cut apart I just used a few wood screws to hold things in place where it overlapped, and trimmed some where sheets needed to 'butt-up'
...I have a huge amount of experience sculpting with expanding foam(professionally using a big foam machine we had...but now just used the stuff in cans for home use),, and actually just used that to 'glue things together'(solid, and I could then remove screws and small spacer wood shims and bridges),,,since that one is only "practice", I didn't use fiberglass to re-bond gaps and cuts, and just did the surface patching in the foam with alittle Bondo on top for good looks...in some of the photos you can barely see the whole new tail design I'm doing totally out of foam(I'll have to post images of that sometime) which I'll mold and cast with fiberglass....yup, there is much more happening with this project :eek:h:

What you will do with the removable rear window ?
well, removed it of course...but I'll do a fixed plex window...was wanting to revert the slant on it, but would have to move the top back further or widen the basket handle, so that there is a flat wall behind the seats and the back window is at the same angle going up and back from the inside
And when lowering the seats you still will have enough sight out over the front ?
kinda might be an issue, also the view up out of the windshield...I did some "hunching down tests" and that long nose does disappear some, but that already happens anyway,,,so its like a small issue becoming a slightly less minor one...hey, but they say aim high when driving fast :sweat:
As you plan anyway to redo your seats why don't make the back pretty thinn and change the angle of the back to get also more headspace without lowering te seats.
I think with the windshield raked back any(as in my plain vs cutting glass to lower the roof), angling the seats back alittle with help so that the windshield isn't more 'in your face'...however it will make the above problem worse of seeing the hood/nose of the car and the road right in front

Good luck with that project.
And keep us updated.

Greets
Robert
I'm still waiting to get the title(and hand over some cash) for that `72 before I cut into her....if I do a good photoshop/rendering of where I want to head with this project I'll be sure to post it....I should be able to get the title maybe next week, but then taking the fam on vacation...so this will be a summer project, but I want to move quick on the main mods(get the body and custom interior main lines sculpted in) , then slowly work on motor/trans, body finish, trim, and all the odds and ends(gages, wheels/tires, seat/floor covers, lights, etc.) bought and installed over fall and next year
...but I think it will be good to have something wild going on with the `72 coupe, as then I can bounce back and forth between it and the `74 vert in more stock-ish direction when things don't work out, frustrations, momentum wains, get hung-up, or parts/moneys waits happen....


any images of chop top C3 coupes?
thanks :ghost:
 
Last edited:
Gene, 6,5 and you want to lower the roof????

I'm sayin'! I never thought I would see a thread about chopping the top on a C3. Raising the top maybe. . .

HEHEHEHE....the only cars I have EVER been able to get in/out of with total ease have been the 60-70's B body GM cars.....even the new Caddy the guy across the street has, is not enough headroom.....I have a tall spine with extra lower lumbar vertebrae so messes up lots of stuff, that being one of the PIA things, I even had to slam the seats in my 3/4 ton Dodge window van work trucks...otherwise my head would rub the head liners, no room for a hat even....so I"d cut the seat mount and slam it 3-4 inches....

my '72 vert here I took the mounting ears off the rear of the tracks, removed any carpeting/padding from under the tracks, and gained about 2" in the rear, removed the seat belt cover and left the old OEM padding in when recovering the seats....that makes it about 4" lower than the stockish looking over plump stuffed look of a typical show/resto car....

I took out the fixed wheel column, put in one from a late shark tile/tele.....

and cut the floor to remove the bump for the dimmer, later on I cut the floor on the bottom, and up to the steering column on each side, swung the firewall forward 3-4" and re glassed it in.....lowered the brake and gas pedals accordingly...those two mods pulled my knees off the damn steering wheel, so I can actually drive it now very comfy in my James Dean slouch position, left hand at 11-12 on top of the wheel, and leaning on the console cushion.....sorta goes with the Hurst shifter bar, and the 8 ball on top.....just not cool without a 8 ball on your shifter, you know.....



:crutches::friends:
 
Top