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GT40 upper question

  • Thread starter Thread starter Decurion
  • Start date Start date Jul 21, 2009

Decurion

Member
Sep 28, 2006
353
0
16
Livonia, MI
Jul 21, 2009
#1
  • Jul 21, 2009
  • #1
I plan to inject my 65 Comet here in the near future and would like to use the gt40 manifold. My question is which one should I use? From what I can see there are 2 different manifolds for a total of 3 different inlet combinations. First is the regular gt40 manifold with the throttle body facing the fender, second is the same manifold with the explorer 90* inlet so that the TB faces forward, or the third is the 94-5 Cobra with the TB at a 30* or so bend cast into it. I know all 3 will physically work, but Ive seen a couple Mustangs with the 'standard' side entry TB and the inlet tube pretty much runs right into the shock before making a bend forward to the filter. I think the Cobra or Explorer would work better, but isnt the Cobra upper a bit shorter or something? Does the Explorer bend even make enough of a restriction to worry about with mildly ported f3ze heads?
 
H

hsr

Member
Apr 15, 2004
138
0
17
Riverview, MI USA
Jul 21, 2009
#2
  • Jul 21, 2009
  • #2
The Cobra is the longest (widest). Meaning the EGR is part of the manifold, not a seperate piece. The Explorer and GT40 are the same width as the stock and are/were intended to use the EGR spacer. I am using an Explorer in my '65 Mustang with a Pro M flow tube. It wouldn't fit if the stock EGR spacer was in place. I made my own out of 20mm aluminum to carry the throttle cable bracket.

Have some pictures here: http://forums.corral.net/photopost/showgallery.php?cat=500&ppuser=102130

There is a guy on VM that used the Cobra in a '65. Phil (Hoosier Buddy) I think. He had some issues with shock tower clearance.

Are the Comet towers any further apart than the Mustang?

BTW, when did you sell your Falcon wagon? There was a car show here at PDC (Ford) on Friday and I believe your ex car was here. Attracted lots of attention.
 

Decurion

Member
Sep 28, 2006
353
0
16
Livonia, MI
Jul 21, 2009
#3
  • Jul 21, 2009
  • #3
65 Comet/Falcon frame rails are about 1" narrower than 65 Mustang. I sold my Falcon about a week and a half ago, but the guy that bought it lives in Westland so Im sure it was my old car you saw. I really miss the attention that car attracted, not to mention the satisfaction I got every time I drove it. ...BTW, whats 'PDC'? Ill ask over on VMF, some good guys there too, plus I havent been there in a while. The more I think about it, Ill probably just use the standard setup and get/make an EGR eliminator.

EDIT: Who made your export brace? I just bought one from Delta Bay Mustang that looks like a regular stamped export brace, but its actually custom made to fit around an EFI intake on a Falcon. I cant stand those heim joint things, and I just cant believe they actually work as well either.
 
H

hsr

Member
Apr 15, 2004
138
0
17
Riverview, MI USA
Jul 22, 2009
#4
  • Jul 22, 2009
  • #4
Eric,

The Falcon had a tan interior with blue cam lock lap belts up front. Sorry, I put the parenthesis in the wrong spot. PDC=Product Development Center. Across the street from Greenfield Village.

The export brace came from Laurel Mountain. It's a knock off of the Maier Racing brace (just a lot less expensive).
 

Decurion

Member
Sep 28, 2006
353
0
16
Livonia, MI
Jul 22, 2009
#5
  • Jul 22, 2009
  • #5
Yep, that was my old car then. The new owner works for Ford and said that seat belts are the first thing he would put in because of his young kid(s).
 
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