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PVC molded floor pans???

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Old Apr 30, 2025 | 10:02 PM
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PVC molded floor pans???



Ok this is my hot rod I stole for 3000, or thought I did. I’m curious because I can’t find anything on it anywhere, but this car has molded pvc, hard plastic, whatever you want to call it, floor pans. Now what shocked me is that this is also molded in the transmission well area. It clean and looks as it was a kit, as everything is custom molded. Does anyone have any information on what the heck this is, is it safe? Any information is very much appreciated
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Old May 1, 2025 | 04:58 PM
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From: Texas
Car: 1986 Pontiac Firebird
Engine: 383 SBC
Transmission: T56
Axle/Gears: Hawks 8.8 with 4.10’s
Re: PVC molded floor pans???

The floor pans look like normal, factory floorpans. You have some custom subframe connectors welded in there and if the floorpan feels like plastic then they may be polymer coated, like a rhino liner. And that’s what it looks like from your first picture. There’s no way or reason to make a plastic floorpan on a unibody car as they’re part of the structure of the car.
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Old May 1, 2025 | 05:07 PM
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Re: PVC molded floor pans???

As far as I can tell, these are 1000 % plastic. I will scrape the bottom and take pictures to confirm. The weird thing is the tranny tunnel feels plastic as well. If it is plastic it is all molded perfectly and I can’t find any information on it anywhere
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Old May 1, 2025 | 05:38 PM
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Axle/Gears: Hawks 8.8 with 4.10’s
Re: PVC molded floor pans???

There’s no reason to damage the coating. Put a magnet up to it.
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Old May 1, 2025 | 05:40 PM
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Re: PVC molded floor pans???

Fair enough. Didn’t think of that
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Old May 3, 2025 | 09:31 AM
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Car: 91 Trans Am
Re: PVC molded floor pans???

The tunnel looks original with the pleats, creases etc

Floors are flat sheetmetal with bead rolls for strength. Most likely they're 18-20ga steel, but could be aluminum if it's riveted/glued in. Zero chance that's plastic

I agree, use a magnet
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Old May 3, 2025 | 09:33 AM
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Re: PVC molded floor pans???

1000% correct. It’s is metal. I put a magnet on it and it stuck. Was just worried about it being structural sound. But whatever coating is on it , makes it feel like plastic. Appreciate all the comments and advice
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Old May 4, 2025 | 03:34 PM
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: PVC molded floor pans???

With that fabricated subframe, the floor could be flat sheetmetal since that subframe provides far more rigidity than the factory unibody did.

My race car doesn't have that much subframe however it does have a full cage which makes up for it. My floor is just sheet metal.
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Old May 4, 2025 | 03:46 PM
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Re: PVC molded floor pans???

My car has the half cage but is being upgraded to the full cage, so I guess I’m good, just anxiety got the best of me
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Old May 4, 2025 | 07:33 PM
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Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: PVC molded floor pans???

Whats the rest of the chassis like? I seea 4 link and a quick change rear? Pretty sweet deal for 3k
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Old May 4, 2025 | 08:11 PM
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Re: PVC molded floor pans???

New Umi an arms and new coil springs. All tie rods and linkage new moog and Umi sway bar new. Original spin falls but new rotors and wilwood brake calipers
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