Cowl Hood Insulation?

[louder50]

I am installing a 2" Cowl Ind hood on my 84 and was wondering what people who have these did for hood insulation? It appears to take the regular insulation but do you have to trim any area out for air flow or just run a solid sheet of it? Does it matter?

[cjlinkster]

Does your cowl hood have openings in the back (i.e. is it a functional cowl hood)? If it is not a functional cowl, I would just go with a single sheet of insulation.

If it was a functional cowl, I would look into using a thinner type of stick on insulation. Check out the Fatmat hoodliner kit.

Shoot us some pics of the hood installed on the truck. I have been considering going with a 2" cowl.

[77chevyinline6]

this may be a stupid question but what is the purpose of having the insulation?

[Firebirdjones]

Noise mainly

[Firebirdjones]

On factory cowl hoods (such as my chevelle) the insulation changed. The factory had small pieces of insulation that tucked into the support structure rather than one big sheet.

Depending on how your aftermarket cowl hood is made you could probably do the same thing GM did back in the day.

[77chevyinline6]

oh ok i was just wondering because my 77 didnt have it but my dads 79 did but he took it off because it fell all over the motor and always made a mess

[cjlinkster]

Depending upon the engine and vehicle, the insulation helps to prevent the engine heat from cooking the paint on the hood.

[Firebirdjones]

Originally Posted by 77chevyinline6

oh ok i was just wondering because my 77 didnt have it but my dads 79 did but he took it off because it fell all over the motor and always made a mess

That's pretty much the story of most old cars. That stuff never lasted the life of the vehicle.