Cobra intake install

gray87GT · 02-02-2001, 12:59 AM

Do I need to plug any of the holes in the cobra intake??? If yes, what size plugs? Are there any other things I should do. thanks

withamc · 02-02-2001, 01:06 AM

You'll need to plug the four coolant holes at the corners of the lower manifold. They use an NPT thread, I forget which size. I think that's it - just make sure all your vacuum fittings have a place to go. I used the old vacuum tree off my factory intake.
By the way, can anybody tell me what the vacuum fitting on the front near the throttle body goes to? Right now I've got it plugged.

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86 GT, GT40P heads, Cobra cam, 1.7 RR's, Cobra intake, 65mm TB, 73mm Vortech, 24# injectors, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s.

Mach 1 · 02-02-2001, 01:19 AM

it goes to the charcoal canister, located on the forward right side, lower, mounts to the subframe.

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1993 GT/AOD
'93 Mustang GT

02-02-2001, 12:59 AM	#1
gray87GT Registered Member Join Date: Jan 2001 Location: Minnesota Posts: 177	Cobra intake install Do I need to plug any of the holes in the cobra intake??? If yes, what size plugs? Are there any other things I should do. thanks

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02-02-2001, 01:06 AM	#2
withamc Registered Member Join Date: Aug 2000 Location: Thousand Oaks, CA Posts: 396	You'll need to plug the four coolant holes at the corners of the lower manifold. They use an NPT thread, I forget which size. I think that's it - just make sure all your vacuum fittings have a place to go. I used the old vacuum tree off my factory intake. By the way, can anybody tell me what the vacuum fitting on the front near the throttle body goes to? Right now I've got it plugged. ------------------ 86 GT, GT40P heads, Cobra cam, 1.7 RR's, Cobra intake, 65mm TB, 73mm Vortech, 24# injectors, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s.

02-02-2001, 01:19 AM	#3
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	it goes to the charcoal canister, located on the forward right side, lower, mounts to the subframe. ------------------ 1993 GT/AOD '93 Mustang GT