[A1cnc]

I picked up a 71 GTO a couple months ago and have been assessing it to see what I will need to do to get it back running/ driving. It won't be a show car but I want a nice reliable car I can drive.
It has a 75 455 in it that was stuck but I now have it free and turning over. I had to pull the heads to get there and it will definitely have to be bored if I want to use this engine.

I am not positive but I believe the car might have been in a flood. In order to get the doors open I had to dissect the door latches and pound them open.

The first area I was going to start on is the trunk floor. I picked up a Tailight panel I cut out of a scrap car but the rest of the trunk floor all the way up to the rear seat divider needs to be replaced.

Who makes the best fitting full trunk pan for the 71 GTO?

TIA

['ol Pinion head]

Welcome aboard. '71 & 72 guy here. On the repro trunk sheetmetal, from what I've seen, unlike the thin abbreviated 3 piece trunk floors, there is only one producer that tooled up for the one piece trunk floor. It's been several years since we brought one in for a friends car, believe that was in a dynacorn labeled box. A ton of dynacorns other stampings, am not a fan of.

Goodmark still has a web presence, was told a while back by a local bodyshop owner, building square bodies, that Goodmark had been bought out by AMD, not sure if that is true. Hopefully can get more info, have a source that has been overseas to the facilities, & he flat told me of numerous stampings that he personally saw the stampings being packaged were the same no matter which of the two labels were on the box.

[A1cnc]

Thanks for that,
I looked at Goodmark's site and they show 3 different full trunk floors. 1 Goodmark and 2 different Keystones. But all 3 pictures look the same and none show the front section toward the seat pan.

Ames lists a full trunk pan but says it needs to be modified to fit 71-72.
Has anyone used that trunk pan?

['ol Pinion head]

On the raised deck portion of the trunk, have not seen that included in any "full" trunk pan. The top deck areas there are different factory stampings on the middle area of those. I've kept a sectioned out center piece from that top deck out of a 70 LeMans that i parted that had CA emissions. Will compare it to the original upper deck area in one of my '71 233's & take a few pics.

Unfortunately, if using the "full"repro trunk pan, it has to be cut into the front deck area & then back where it ramps up above the triangulated body brace. Have cut quite a few wide "tail panel" pieces out of '69's & 70-72's well forward into the flat portion off the trunk floor.

[Baron Von Zeppelin]

Welcome to the forum and congrats on the GTO

Consequently you have the toughest car to find solid front end sheet metal for.
No repops either.
Your hood looks like its in big trouble in a lot of areas.
Hoping that is superficial warts and blisters

Those hoods are highly prone to rust anywhere and everywhere on them front to back.