New to GT40's...

GreenStangGT

Member
Jan 29, 2004
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New to GT40's... *NEW PICS*

I just purchased a GT40 upper/lower on eBay and have some questions. I have used the search function (:D ) and have found very useful information on the installation process, but I am still curious how long the install should take? There will be two people doing the install, one of which (me) with little mechanical experience and another person (a retired mechanic and drag racer of 20+ years) who has little experience with 302's specifically but with lots of general engine knowledge.

Also, I've found good info on the process of polishing the intake, but what is the process of simply prepping and painting rather than polishing it? Is there a write up for that somewhere?

Thanks for any info! (If you have other useful tidbits on the intake, please pass them right along!)
 
as far as time goes, maybe 2-3 hours since you've never done it before.

about painting it. many people shy away from painting an intake because it insulates the heat then. is it in bad shape that it needs paint?
 
as far as time goes, maybe 2-3 hours since you've never done it before.

about painting it. many people shy away from painting an intake because it insulates the heat then. is it in bad shape that it needs paint?

It's not in bad shape per se, I just think it would look so much better painted. I guess I never gave any thought to paint trapping in heat... is that really a problem with painted intakes? I understand the problem of excessive heat, but how much hotter could a layer of paint actually make it? Excuse my ignorance lol.
 
Go get a couple pieces of all thread. Chop it into 6 inch pieces and screw them into the corner intake holes before you drop the lower on. Made my install much easier.

Also on the front and back wall I couldn't get it to seal with just RTV so I used the rubber pieces it came with. Just needs a good bit of rtv at the corners.
 
I'm in the same situation as you, Greenstang. I picked up a used Gt40 a couple months ago and it's awaiting install. I too was going to polish it but i just dont have the time or money, so i scuffed it with sandpaper and sprayed a coat of duplicolor high heat enamel. It already looks much better than the ugly gunmetal gray that it was, and i still have to do a 2nd coat and clear it. I cant imagine one or two coats of paint could make any noticeable difference in temperature (i could be wrong). I plan to follow this install article once i get my elbow adapter... http://www.allfordmustangs.com/Detailed/614.shtml ...let us kno how the installation goes.
 
If it looks like this then yes
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I got my gt40 intake powdercoated, I dunno about how bad the heat is kept in...since ceram. coating is a form of powdercoat basicly just more ceram. stuff. Some of the factory intakes were coated and they didnt make too much diff. from what I have seen. In the end the intake is alum. and even though alum. sheds heat better/faster than iron no matter what it will still heat soak painted/powdercoated/polished/left stock/blessed by a priest.

As far as prep for my exploder upper,

I started by blocking all the flat areas with 80 grit block then getting the small areas/hard to reach areas by hand. I got tired of that and got my grandpa's bench grinder (he died a few years ago and my grandma wanted me to take it anyway) the grinding wheel made things ALOT faster as far as knocking down the casting flash/pits.

I took a dremmel with a cut off wheel (the actual mini fiber ones not the fragile ones) and cut off the bracket at the front of the exploder upper, I also cut in the fins were the bracket was. Still with the dremmel disk I dragged it across to some areas the grinder just would not get at...just had to watch the smoothness of my motions as that disk cut into the alum. fast.

After it was mostly smooth I went over with 100grit and then with 220 grit rather quickly. There were a few little deeper scratches from the 80/100 in some of the deeper nooks but you really have to look to see them and the powdercoat is fairly "clear coat-ish" in that other than some silver with metalic its just thin so the scratches couldnt be that bad if you have to know were they are.
 
Since you've never done this before, schedule the entire day to do it. You're going to have to run to NAPA at least once for some fittings, and probably some new vacuum line.

Just take your time and mark everything. After you do it the first time you'll be able to swap it out in no time at all. The first time I did it it took around 7 hours and two trips to NAPA. The second time it took about 2.5 hours.

Don't forget fuel line disconnect tools!

Adam
 
You dont need the fuel line dis-donnects, the whole harness will pull to the side and rest in the area were the airfilter is with plenty of room/out of the way.

Yes plan plenty of time, the first time I pulled my intake it took me 2-2 1/2 hrs. Now I can pull it in 30-45min. draining the coolant and getting the acc. out of the way (alt./belt/brackets) I can take off the upper in 5-8min.
 
Took a few hours...I just used a fine brush and Rustoleum'd it...I had some Red,Blk,Silver and went at it....I was unsure of what to do so opted to brush it up then choose and go from there...
From a distance it actually looked good for a brush job....I ran the intake 2 months then swapped it out...
Youll like it..It'll give a nice mid/high hit...I was impressed with it..

I had a plaque out of a Lincoln 5.0...

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