Are you using hood insulation? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dan42 · 03-04-2009, 09:43 PM

Both my trucks do not have hood insulation, and I was wondering who is running it and what you are using. Does it make a big difference in terms of the noise level? I don't have anything to compare it to and was wondering if it's worth it to insulate them.

**SactoJim** · 03-05-2009, 12:05 AM

Hey Dan,

I did this and I think it made a pretty big difference. Hood really makes a nice "thud" sound when I close it and the hood stays pretty cool as well as much of the engine noise if muffled.

Used single foil sided insulation and some 3M hood insulation spray adhesive and also fabbed a little strap of aluminum to go down the center rib. So far, after about 3,000 miles it's sticking perfectly.

67_C-30 · 03-05-2009, 12:08 AM

That looks great Sacto!

I have contemplating whether Rhino-liner bed liner would be a good idea. I could have it sprayed red, and it wouldn't be too far from stock looking besides the texture.

**SactoJim** · 03-05-2009, 12:39 AM

Quote:

Originally Posted by 67_C-30

That looks great Sacto!

I have contemplating whether Rhino-liner bed liner would be a good idea. I could have it sprayed red, and it wouldn't be too far from stock looking besides the texture.

Thanks......I think any type of paint or spray liner would make a difference and would look more finished if painted.

One thing nice about the insulation is that the thickness really fits tight between the hood braces and hood surface and I get no hood jiggle going down the road.

dan42 · 03-05-2009, 01:03 AM

SactoJim, that's a good idea - I think I might try that on my '67. Actually, the PO on my '70 put an undercoating type material on the inside of the hood and that actually seems a bit quieter than the '67, but still fairly loud.

Andy4639 · 03-08-2009, 09:32 PM

SactoJim,
Where did you get the insulation at? Lowes, Homedpoe is it there regular insulation for homes or is it some kind of car product. I have thought about buying a Chevy truck blanket for a late model and cut it up to work.
Here are a couple on E-Bay. One is 1" thick the other's are 1/2" thick.

03-04-2009, 09:43 PM	#1
dan42 Registered User Join Date: Feb 2007 Location: Cali Central Coast Posts: 5,191	Are you using hood insulation? Both my trucks do not have hood insulation, and I was wondering who is running it and what you are using. Does it make a big difference in terms of the noise level? I don't have anything to compare it to and was wondering if it's worth it to insulate them. __________________ '67 SWB Fleetside ZZ4/350/Tremec 5-speed/4link/Scott's IFS - and fun as heck! SOLD Click here to support the board Philippians 4: 6-7

03-05-2009, 12:05 AM	#2
SactoJim Registered User Join Date: Oct 2005 Location: Sacramento, CA Posts: 1,970	Re: Are you using hood insulation? Hey Dan, I did this and I think it made a pretty big difference. Hood really makes a nice "thud" sound when I close it and the hood stays pretty cool as well as much of the engine noise if muffled. Used single foil sided insulation and some 3M hood insulation spray adhesive and also fabbed a little strap of aluminum to go down the center rib. So far, after about 3,000 miles it's sticking perfectly. Attached Images __________________ 72 Cheyenne SWB Fleet Nut & bolt frame off in progress...99.9999% - supercharged 383 - 4 wheel discs - relocated fuel tank - My Build Thread

03-05-2009, 12:08 AM	#3
67_C-30 I have a radical idea! Join Date: Jan 2005 Location: Sweet Home Alabama! Posts: 6,513	Re: Are you using hood insulation? That looks great Sacto! I have contemplating whether Rhino-liner bed liner would be a good idea. I could have it sprayed red, and it wouldn't be too far from stock looking besides the texture. __________________ '67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club!

03-05-2009, 01:03 AM	#5
dan42 Registered User Join Date: Feb 2007 Location: Cali Central Coast Posts: 5,191	Re: Are you using hood insulation? SactoJim, that's a good idea - I think I might try that on my '67. Actually, the PO on my '70 put an undercoating type material on the inside of the hood and that actually seems a bit quieter than the '67, but still fairly loud. __________________ '67 SWB Fleetside ZZ4/350/Tremec 5-speed/4link/Scott's IFS - and fun as heck! SOLD Click here to support the board Philippians 4: 6-7

03-08-2009, 09:32 PM	#6
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Are you using hood insulation? SactoJim, Where did you get the insulation at? Lowes, Homedpoe is it there regular insulation for homes or is it some kind of car product. I have thought about buying a Chevy truck blanket for a late model and cut it up to work. Here are a couple on E-Bay. One is 1" thick the other's are 1/2" thick. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.



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