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Filling in top fresh air grills

 
seacow
New User
Posts: 1
Joined: 10/11
Posted: 10/10/11 11:36 AM

I have a 66 mustang coupe,I'm going to put in an aftermarket ac/heater unit, can I sealup the top fresh air grills below the front windshield ? Also, has anyone welded their rear valance to the body and had any cracking or other issues doing this ?  

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MustangMan
Moderator
Posts: 588
Joined: 07/06
Posted: 10/11/11 06:12 AM

Most traditional builds seal the cowl from the fresh air outlets under the cowl, leaving the inlet, which is visible to others outside the car, stock. However, if you want to smooth it or do something custom it is entirely possible. On our '68 fastback project we filled the cowl vent in and made fake air vents that match the upper quarter vents on our car. It's something different, and like you, once the A/C system is in place the vents are useless...

Project Generation Gap Modified Cowl

As for the rear valance, ours is fiberglass and molded into the body, but I've seen numerous steel ones welded and ground flush without issues.

HTH...
Mark
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Mark Houlahan
Brand Manager
Mustang Monthly Magazine

1965 FFR Roadster 427W/TKO-600 5-speed
1966 Mustang 289-4V/C4 Auto
1968 Mustang 4.6L Three-Valve/5R55S Auto
1990 Mustang 306/AOD
2002 Explorer Sport Trac 4.0L V-6/5R55 Auto
2005 F-150 4x2 4.2L V-6/4R70W Auto

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