Letting the heat out. 67 Hood louvers with vents... - Page 2 - Chevelle Tech
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post #16 of 40 (permalink) Old Jun 9th, 16, 11:10 AM Thread Starter
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Re: Letting the heat out. 67 Hood louvers with vents...

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Originally Posted by NickeyChevelle View Post
Be prepared for engine exhaust smalls and various toxic gasses from the engine compartment to enter the passenger compartment through the "fresh air" vents. The under hood weather-stripping normally routes those smells down and under the car. You'll be venting them out through holes in the hood -- at least when you're stopped at a light, etc.

I can't see them coming threw the vents or windows when stopped, All that hot air should go straight up when it's sitting still.
But I won't know for sure till I try it...
The three guys that I read about doing a similar mod on their 66's never saw this issue.

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post #17 of 40 (permalink) Old Jun 9th, 16, 11:12 AM Thread Starter
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Re: Letting the heat out. 67 Hood louvers with vents...

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Originally Posted by Alwhite00 View Post
Are you cutting out the underside of the hood? I just looked at mine and even with the insert vented the hood structure is solid in that area.
Yes I will need to cut open the hood.

NO it's not an original SS hood.
I don't feel bad about cutting it up as it will be all hidden for the most part.
If I have to I'll make some bracing to stiffen it up.

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post #18 of 40 (permalink) Old Jun 9th, 16, 12:18 PM Thread Starter
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Re: Letting the heat out. 67 Hood louvers with vents...

I'll have a full printed set tomorrow night.
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post #19 of 40 (permalink) Old Jun 9th, 16, 10:22 PM
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Re: Letting the heat out. 67 Hood louvers with vents...

The Original Look to the '67 would be nice, long fore and aft ribs but open through the hood.
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post #20 of 40 (permalink) Old Jun 10th, 16, 12:35 AM Thread Starter
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Re: Letting the heat out. 67 Hood louvers with vents...

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Originally Posted by Cal Malibu View Post
The Original Look to the '67 would be nice, long fore and aft ribs but open through the hood.
Yes! That was my first though. Take my louvers to a machine shop and get the shallow parts milled out. But paying someone to do it would be expencive... and if it doesn't work then I have to buy new ones...

I'm doing this on the cheap, If it works(pretty well) then I will probably go back and do something a bit more OEM looking... Maybe, lol.
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post #21 of 40 (permalink) Old Jun 10th, 16, 12:37 AM Thread Starter
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Re: Letting the heat out. 67 Hood louvers with vents...

Quote:
Originally Posted by NickeyChevelle View Post
Be prepared for engine exhaust smalls and various toxic gasses from the engine compartment to enter the passenger compartment through the "fresh air" vents. The under hood weather-stripping normally routes those smells down and under the car. You'll be venting them out through holes in the hood -- at least when you're stopped at a light, etc.
Now this has me wondering... Do guys with blowers get a bunch of exaust and nasty stuff in there cars seeing how they have a big hole in their hood??
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post #22 of 40 (permalink) Old Jun 10th, 16, 2:59 PM
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Re: Letting the heat out. 67 Hood louvers with vents...

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Now this has me wondering... Do guys with blowers get a bunch of exaust and nasty stuff in there cars seeing how they have a big hole in their hood??
I dont think so at least I never noticed any smells or gases in blower cars or mine 64 with a cowl hood thats open in the back?

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post #23 of 40 (permalink) Old Jun 10th, 16, 3:12 PM
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Re: Letting the heat out. 67 Hood louvers with vents...

I remember back in the early days of drag racing the rear of the hood was often jacked up with spacers to allow cooler air intake. I guess a homemade cowl hood so to speak.

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post #24 of 40 (permalink) Old Jun 10th, 16, 6:17 PM Thread Starter
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Re: Letting the heat out. 67 Hood louvers with vents...

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Originally Posted by HandOverFist View Post
I remember back in the early days of drag racing the rear of the hood was often jacked up with spacers to allow cooler air intake. I guess a homemade cowl hood so to speak.

I'm more looking to vent out the hot air, when it's sitting still mostly.
I wonder if or how much cool air I will get into the intake since the holes will be right over my open top air filter.




^^ My air filter...

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post #25 of 40 (permalink) Old Jun 11th, 16, 2:46 AM
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Re: Letting the heat out. 67 Hood louvers with vents...

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I'm more looking to vent out the hot air, when it's sitting still mostly.
I wonder if or how much cool air I will get into the intake since the holes will be right over my open top air filter.




^^ My air filter...
If the car is static it will absolutely help.

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post #26 of 40 (permalink) Old Feb 5th, 18, 11:35 AM
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Re: Letting the heat out. 67 Hood louvers with vents...

Not to blow up an old thread, but was there ever a conclusion on this topic? Awesome and useful, or waste of time?
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post #27 of 40 (permalink) Old Feb 6th, 18, 1:09 PM Thread Starter
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Re: Letting the heat out. 67 Hood louvers with vents...

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Not to blow up an old thread, but was there ever a conclusion on this topic? Awesome and useful, or waste of time?
The 3d printed louvers never worked out. Mostly because my friends 3d printer was crap... lol. Printed them off a few times and they just never fit right and his printer is small so they were getting made in 4 pieces.
I got sick of waiting for a good 3d printed set and took my cut off wheel to my hood louvers. I cut out all the center but this also didn't work out that great. I cut out to much and it would have been hard to mount them / they sat funny with out all the support.

So I pretty much scrapped the idea.... Till I went to SEMA 2017.

Then I ran into Trackspec hood louvers. I really dig the look of them and talked to a couple people using them and they do exactly what I want... Let out the hot air.
I wasn't sure where they fit on a 67 SS hood though... I've been looking for a flat hood but they seem to be all over priced or rotten.
Anyway sometime this spring i'll get the guts to cut a couple holes in my hood and add some of these.



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post #28 of 40 (permalink) Old Feb 6th, 18, 1:36 PM
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Re: Letting the heat out. 67 Hood louvers with vents...

Paul do those close up if it is Raining

Once in a while we do get caught out in a sudden Summer Thunder Storm

Wish someone made cutout ones as a complete Direct OEM Replacement for our 67s

One day I might get a Repo set and try moding them myself

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post #29 of 40 (permalink) Old Feb 6th, 18, 1:48 PM
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Re: Letting the heat out. 67 Hood louvers with vents...

I'd love to do louvers in the hood if I was willing to cut my original SS hood or to cut up a dry carbon hood that I'd like to get.

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post #30 of 40 (permalink) Old Feb 6th, 18, 2:59 PM Thread Starter
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Re: Letting the heat out. 67 Hood louvers with vents...

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Originally Posted by Kirk's67SS View Post
Paul do those close up if it is Raining

Once in a while we do get caught out in a sudden Summer Thunder Storm

Wish someone made cutout ones as a complete Direct OEM Replacement for our 67s

One day I might get a Repo set and try moding them myself
No, they do not close up... But I figure if I put them besides the SS louvers then water will just drop on to the headers. Really though I pretty much live in a desert and in the 18 years i've owned the car it's only been caught in the rain a couple of time.I'll probably make somekind of drip tray for when washing it though. Not entirely sure on that yet.

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