How to fill holes in the firewall?

[Just 1 More]

Any y'all filled unused holes AKA: mistakes? How or what do you use to fill in unused, unwanted holes? I was thinking JB Weld or some kind of aluminum patch? I'm looking for suggestions here. Thanks

[edwardb]

How big are the hole(s)? Regardless, I probably wouldn't use JB Weld. For small holes, a polished (SS) round head screw looks decent and gives the impression it's there for a reason. Larger holes, I'd probably go with a patch. I get it. Everyone likes a nice firewall on the hot rod (or truck) and especially if not installing a hood. But keep in mind, once done, it's relatively busy and much of the view is covered or at least obstructed by the engine and related.

[Just 1 More]

How big are the hole(s)? Regardless, I probably wouldn't use JB Weld. For small holes, a polished (SS) round head screw looks decent and gives the impression it's there for a reason. Larger holes, I'd probably go with a patch. I get it. Everyone likes a nice firewall on the hot rod (or truck) and especially if not installing a hood. But keep in mind, once done, it's relatively busy and much of the view is covered or at least obstructed by the engine and related.

2 holes are 1/4" or 5/16" and the other is around 1/2". I thought about the stainless bolts for the 1/4" but the 1/2" one i'm not so sure of, Though maybe a simple rubber plug. BUT, like you said, once it's all done, I doubt it would be noticable.

[Papa]

How about panel/hole plugs or sealing grommets? Lots of sources and sizes available.

[ydousurf]

J1M, ebay has many options from rubber to steel. There are metal polished one's w/clips that just push-in and you're done.

Doug

[TxMike64]

I had a measurement mistake and drilled a couple holes in the wrong place. Thankfully I know a few friends with TIG welders and asked one of them to weld up the holes for me, then ground them smooth.

[FF33rod]

I threaded the hole and put a screw in it Didn't make a mistake with a bigger hole but would use a plastic or rubber hole plug if needed.... many different brands, some on Amazon even.

Steve

[Just 1 More]

Didn't even think of the metal hole plugs, going to stop by my neighborhood hardware store and see what they have. Thanks guys