Hood Insulation For Old Truck

Duane WI

Member
I am about 90% through restoring a 1947 International KB1. I have a Chevy 235 straight six in if for an engine. I am debating insulating the underside of the hood to protect the paint from heat. The paint is Omni Epoxy Primer and Omni single stage urethane. There is a little body filler to smooth out a couple of shallow dents (less than 1/32 inch think). I am thinking of lining it with some self adhesive duct insulation I lined the inside of the firewall with. It has a foil backing that would be on the inside of the engine bay. Is insulation needed? Would the duct insulation hold up? I just don't want to see paint failing over time.
 
I can't see the engine compartment getting hot enough to damage your paint with 6 cylinder engine.
 
I doubt you will have any paint issues due to heat, but if you insulate the hood, it sure will make it a quieter truck. I'd insulate the floor boards too. That comment about vapor locking the fuel or causing too much engine heat is way off base. If that were the case, the car and truck manufacturers wouldn't be insulating hoods on premium cars and trucks.
 

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