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Re: ** YOUNG FRANKENSTEIN ** The truck Chevrolet should have built.
Quote:
Originally Posted by drewskiren
No, that was added to GM Cars and Trucks in the 60's sometime - as an exit for air that comes through the cowl/HVAC system. It would help with defogging the glass primarily. I think these trucks got them in 72? They called it Astro Ventilation back in the day. Think of a vacuum cleaner, if you plug the exhaust side it won't suck very well. This large exhaust vent just allowed more fresh air to flow through the system, through the cab, and to the outside. If you had fumes in the truck, certainly this would help to clear them, but that was just a side benefit.
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It is a great idea to add the vents to your truck. It will make the HVAC system work better. I planned on putting them into my truck too.
You should get some of the reproduction Astro Ventilation decals for the side glass like was put on my 68 Camaro. Simple small white script lettering with no background. It would add just a subtle touch not many would notice.
http://www.rickscamaros.com/camaro-a...ecal-1968.html
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miSSed opportunity - ground up creation of an AWD 1994 454 SS that never was http://67-72chevytrucks.com/vboard/s...d.php?t=795577
69 C10 shortbed stepside 400 small block - built like what a super sport truck could have been
69 K20 lwb TBI 350 4L60E NP208 14-bolt Dana-44 w/disc
68 Camaro SS / RS 500hp 439 inch roller cam big block 4L80E
79 Malibu TPI 350 4L60 w/ Z28 steering & sway bars
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