Choosing between intake manifolds - Page 2 - Vintage Mustang Forums
 3Likes
Reply
 
Thread Tools
post #16 of 27 (permalink) Old 07-16-2019, 09:41 PM
Moderator
Supporting Member
 
Join Date: Dec 2012
Location: Huntsville, AL
Posts: 8,405
Garage
I will add, I highly recommend using a in-lb torque wrench so you will be up in the scale of the wrench rather than in the well of ft-lb wrench where the accuracy might not be as good.

Regards,
Patrick
patrickstapler is offline  
Sponsored Links
Advertisement
 
post #17 of 27 (permalink) Old 07-16-2019, 10:25 PM
Senior Member
 
66coupe289's Avatar
 
Join Date: Sep 2001
Location: Milwaukee (Sussex), WI
Posts: 2,185
Quote:
Originally Posted by gen3 View Post
I was thinking I would use a thermostat housing that has one built in.
Agreed. No way would I risk modifying that intake.

What's this going in?

Chris (Sussex, WI)

289 w/AFR 165, T-5z, 3.55T-loc, Granada Discs and 6 bolt Moto-Lita Steering Wheel
66coupe289 is offline  
post #18 of 27 (permalink) Old 07-16-2019, 10:38 PM Thread Starter
Member
 
Join Date: Jun 2019
Posts: 36
Quote:
Originally Posted by GT350HR View Post
Now that I see a picture of the manifold you have , I see it has a Shelby engine department modification ( the side to side "step") machined into it. This was reserved for "race manifolds" only back then and is also with the water temp fitting hole isn't drilled. Because of this "revelation" LOL you would be better off using the Cobra intake. You could drill and tap for the water temp sender too . I see the boss is there in your picture. I believe that should also have ported runners since it was a race piece. Still fine for street use. RE your hi po heads , IF they are also ported they will be fine. If not , aftermarket aluminum heads will make more power. A ported hi po head will flow about 210-220 cfm at BEST and nearly every aluminum head flows more that that "out of the box". If we had something like that 50 years ago , we would have left the Chevys in the dust and been waaaay further ahead now. We didn't get a true performance head until the late 80's. Now there are 30+ different Ford small block aluminum heads to choose from.
Randy
Just noticed it also doesn’t have a spot for the PVC
gen3 is offline  
 
post #19 of 27 (permalink) Old 07-16-2019, 11:10 PM Thread Starter
Member
 
Join Date: Jun 2019
Posts: 36
Quote:
Originally Posted by 66coupe289 View Post
Agreed. No way would I risk modifying that intake.

What's this going in?
66 fb
gen3 is offline  
post #20 of 27 (permalink) Old 07-17-2019, 01:07 AM
Senior Member
 
Join Date: Jul 2009
Location: Niceville Fl
Posts: 4,494
One concern with the Cobra intake is the carb mount. It is very thin and known for vacuum leaks. You'll have to take your time to get it right. Even so, I would use it if I were you. I've been looking for a reasonable priced one for some time.

Flade
68 289 convertible Candy-apple red & white
66 200 coupe Blue
94 GT convertible Red & black
98 GT convertible White & black
98 V6 convertible White & tan

Flade is offline  
post #21 of 27 (permalink) Old 07-17-2019, 06:07 AM
Moderator
Supporting Member
 
Join Date: Dec 2012
Location: Huntsville, AL
Posts: 8,405
Garage
Use a 1/2” Open phenolic spacer with gaskets on both sides. You won’t have a vacuum leak. Otherwise, as Flade points out you most likely will.

Regards,
Patrick
patrickstapler is offline  
post #22 of 27 (permalink) Old 07-17-2019, 08:46 AM
Senior Member
 
j persons's Avatar
 
Join Date: Aug 2010
Location: Natchitoches, LA. at the edge of the swamp
Posts: 3,923
If you use modern heads, you can torque the end bolts to the same value as the others. Modern heads have material added on the ends so the manifold is fully supported.

John

The Fauxstang. Dynacorn 67 fastback. Dart SHP 363, Close ratio Magnum 6 speed, 3.70 Eaton Truetrac in a fabricated full floater 9", SorT coil over suspension. Still in pieces.
'14 SHO with most all the bells and whistles. Stock for now.
F-150 SCab daily driver
j persons is offline  
post #23 of 27 (permalink) Old 07-17-2019, 08:47 AM Thread Starter
Member
 
Join Date: Jun 2019
Posts: 36
Quote:
Originally Posted by patrickstapler View Post
Use a 1/2” Open phenolic spacer with gaskets on both sides. You won’t have a vacuum leak. Otherwise, as Flade points out you most likely will.
like this? I'm going to need a new hood for sure.
Attached Images
File Type: jpg 46A5C18C-1C0B-4350-993B-783E7DF8A28F_1563367598654.jpg (288.8 KB, 7 views)

Last edited by gen3; 07-17-2019 at 09:07 AM.
gen3 is offline  
post #24 of 27 (permalink) Old 07-17-2019, 09:01 AM
Senior Member
 
Grabber70Mach's Avatar
 
Join Date: Jun 2007
Location: Southern Maryland
Posts: 1,920
Quote:
Originally Posted by gen3 View Post
like this? I going to need a new hood for sure.
No that's considered a 4-hole spacer.

I believe they are referring to the type pictured.

Last edited by Grabber70Mach; 07-17-2019 at 09:04 AM.
Grabber70Mach is online now  
post #25 of 27 (permalink) Old 07-17-2019, 09:23 AM
Moderator
Supporting Member
 
Join Date: Dec 2012
Location: Huntsville, AL
Posts: 8,405
Garage
I ran the setup I prescribed under a stock hood with a HiPo air cleaner with about 1/16” clearance.

I now run the same setup with the exception of a open top K&N filter which has a drop base, but taller element...with more clearance.

Regards,
Patrick

Last edited by patrickstapler; 07-17-2019 at 09:33 AM.
patrickstapler is offline  
post #26 of 27 (permalink) Old 07-17-2019, 09:54 AM
Moderator
Supporting Member
 
Join Date: Dec 2012
Location: Huntsville, AL
Posts: 8,405
Garage
Like this...

Regards,
Patrick
patrickstapler is offline  
post #27 of 27 (permalink) Old 07-17-2019, 10:42 PM
Senior Member
 
Join Date: Oct 2009
Location: far east north corner of Texas
Posts: 6,584
Garage
I use a product called Cameo to clean aluminium. It works pretty good and is easy on the aluminium.


65 2+2, 331, C4 presently apart for complete a restore
1979 Ford F150 custom, 302, C4, AC, tilt wheel, main transportation
macstang is online now  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Vintage Mustang Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome