Firewall Insulator Mounting Holes

[dz1087]

Getting ready to order insulation and carpet for the ol' 71. I'm planning on using the RAAM Audio Deadener and Ensolite Mat system under the carpet and along the firewall in place of the old fiber firewall insulating pad from the factory.

2 questions:

1) Is the sound deadener and Ensolite going to at least equal or exceed the heat and sound insulation that the factory placed on the firewalls in these trucks?

2) If I am not going to put stock firewall padding on there, is there any need of the holes in the firewall that were there to hold that padding on? Can I just over those holes up prior to installing the RAAM padding?

[fun in dirt]

Originally Posted by dz1087

2) If I am not going to put stock firewall padding on there, is there any need of the holes in the firewall that were there to hold that padding on? Can I just over those holes up prior to installing the RAAM padding?

I like to use these little plugs from Lowes (usually in hardware section, drawers by bolts).
https://www.lowes.com/pl/Hole-plugs-...are/4294711044
They come in several different sizes and easy to get back out if need that hole for something else later.

[dz1087]

Originally Posted by fun in dirt

I like to use these little plugs from Lowes (usually in hardware section, drawers by bolts).
https://www.lowes.com/pl/Hole-plugs-...are/4294711044
They come in several different sizes and easy to get back out if need that hole for something else later.

Great suggestion! Thanks.