Thread: hood liner

Tweet

Most cars today have hood liners, they protect the hood from heat ( paint) and due some noise control. My 2019 Ram 2500 has it so does my wife's car.

Originally Posted by Navy7797

Most cars today have hood liners, they protect the hood from heat ( paint) and due some noise control. My 2019 Ram 2500 has it so does my wife's car.

Navy,
My 2017 F150 has a pad centered in the hood, immediately over the engine, but my 2005 Jeep Wrangler has nothing. As I've looked it seems to me that the main focus is sound deadening, to prevent the big, flat, suspended panel from resonating engine sounds back into the body through the hinge & latch connections. Looking at my truck & Jeep supports this thought. Ford makes a big deal about how quiet their F150's are on the highway, but JEEP says "Why"? It's a JEEP! It's NOISY!

As you look for info there is some mention of heat, even the combined heat of direct sunlight and engine heat damaging paint but I don't buy that argument. There was even one claim that the insulating panel is intended to melt in the event of an engine fire, extinguishing the flames! That makes zero sense to me.

I'd say for your '40 the distance between the engine and the hood will dissipate most, if not all of the engine heat, and the only reason to consider a liner is if you're concerned with interior noise on the road. I don't believe I've ever seen a street rod with underhood or firewall insulation other than the inside of the firewall, beneath the carpeting, but I'd probably use something like this - https://www.amazon.com/Abahub-Firewa...2718602&sr=8-7

Just my opinion and thoughts, offered for your consideration.