Best way to seal holes in your engine bay?

[Jsmooth]

What is the best way to seal off holes in your engine bay without going to a body shop right away? I have the holes from the AC delete and all the pipes, when driving I feel hot air coming into the car. I will address this later with a paint job and engine bay redo but need a fast fix now. Any suggestions?

 

[Kern Dog]

Weld them up.

 

[R413]

So put on a metal plate on each side bolted together with silicone to seal it off. Pass the bolts through existing Holes. They will be plugged quickly.

Easily removed later to weld a patch.

 

[Mike67]

Body plugs , block off plate bolted through the firewall, of your pipes still stick through add some mastic putty to them.

 

[MiradaMegaCab]

https://www.amazon.com/Morris-21792...&keywords=Knockout+Seal&qid=1605147201&sr=8-6

 

[66 Sat]

I used rubber blind grommets to fill the heater hose holes when I removed my heater box. They come in different sizes, cheap, quick and easy to install & remove. Very similar to body plugs but I could get them from the local foam and rubber place.

 

[F4R/T]

Plastic push in pins— can even paint them with body color to help hide them and the are easy to remove!

 

[khryslerkid]

 

[Shorthorse]

https://www.amazon.com/Morris-21792...&keywords=Knockout+Seal&qid=1605147201&sr=8-6

I've used this style of panel knock out plug on my car. They have a nice beveled edge and can be easily painted.

 

[MiradaMegaCab]

Yup, I use a GreenLee electrical KnockOut Punch Kit to make my holes.
I run a blower on a sb so access to the transmission bellhousing bolts are limited from the engine bay.
I used a 7/8” punch to make holes in the firewall directly in line with the bellhousing bolts, providing quick and easy removal of said bolts from inside the car.

 

[68Moparmaniac]

View attachment 1025577

Don't leave home without it...

 

[Jsmooth]

View attachment 1025577

Will Gorilla tape withstand the heat of the engine?

 

[Jsmooth]

Don't leave home without it...

Would something like this work better for the engine heat?

https://www.jegs.com/i/JEGS/555/32049/10002/-1

 

[RussT Plymouths]

Make a pattern from paper, cut it out from at least 16ga metal using a jigsaw with a metal cutting blade, seal and screw in place. Been in place over 30 years, 4 engines, countless pressure washes and no leaks. Sorry it ain't pretty, function over form, but with a little paint it could look good till you restore.

 

[coloradodave]

^^^^^^^This! Or, buy some light gauge aluminum sheet at Home Depot or Lowes and cut with a good pair of sheet metal shears. A little RTV and a few self tapping screws and you're set...

 

[dvw]

Home Depot , Lowes have press in steel plugs in various sizes. McMaster Carr has them all the way up to 2" diameter.
Doug