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  #11  
Old 03-13-2012, 10:49 AM
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Default 390 heads and intake question

Hi Ken and all. I brought those pix you sent me up in Adobe Reader, pushed the Ctrl and Prt Scrn Sys Rq buttons to copy them. I took each one into a graphics editor, clicked on Paste and got the whole screen shot. Then I cropped the pictures and saved them as a .jpg file. Now they can be posted to the Forum. David, since you are a Paid Member, I do not know why you were not able to upload those pix yourself. You should be able to do so. Here are the pix that Ken annotated.
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File Type: jpg '59ClutchLinkage1.jpg (55.9 KB, 80 views)
File Type: jpg '59ClutchLinkage.jpg (41.3 KB, 79 views)
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Last edited by YellowRose : 03-13-2012 at 12:04 PM.
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  #12  
Old 03-13-2012, 11:28 AM
davidmij davidmij is offline
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Thx Ray, Ken had already sent them to me in an e-mail.
Here's a test of my upload. These are the pix I took yesterday of my manifold and the "dark chocolate cake" that was baked under the intake. I re-sized them to 217KB.

Ah ha! I just got an error that the max file size is 145kb!
Duh,,, my mistake. Here they are.
- Dave J
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File Type: jpg P1010819(2).JPG (127.5 KB, 82 views)
File Type: jpg P1010826(1).JPG (123.3 KB, 82 views)
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  #13  
Old 03-13-2012, 04:37 PM
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Quote:
Originally Posted by davidmij View Post
Thx Dave, I plan on putting headers on the car, so I won't have it anyway.
Yes, but your intake will still transfer exhaust gasses across your carb. Block it off.
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Originally Posted by davidmij View Post
...Oh, and what kind of sealer do you use when installing the freeze plugs?...
I like using RTV (bathtub calk). There is a secret to this: Make sure your surfaces are oil-free and dry before you start. Use lacquer thinner to remove oil. Spread a THIN layer of RTV on your surfaces and assemble. If you use too much, pieces of RTV will be in your cooling system, forever.

Some assemblers use sealer that never hardens. I use RTV because it stays pliable in extreme temps and it is easy to remove. All my cork gaskets get a very thin layer of RTV, and their mating surfaces as well. Again, they 'gotta be clean'. - Dave
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  #14  
Old 03-13-2012, 04:45 PM
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Quote:
Originally Posted by davidmij
Hey Dave, In my blog for "390 heads and intake question" you said that I could block the crossover in my intake manifold. Can you tell me how you would do that? I read online that some guys use epoxy, others talked about using sheet metal.
If I do that do I still need a valley tray and manifold shield?
thx in advance, Dave J
I use shim stock, which is thin sheet metal. You can block both sides or just one side. I would do both sides (just to make sure).

Simply slide a sheet metal cover over the intake manifold port where the exhaust gas enters on both sides. Then, no manifold shield is necessary.
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Old 03-13-2012, 06:58 PM
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Thx Dave, do I still need a valley tray? Sure is weird that this thing didn't have one.
regards, Dave J
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Old 03-13-2012, 09:25 PM
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Default Valley tray ...

It must have been left out by whoever was in there last. Having the tray in place will help control oil mist in the valley and prevent expulsion through your breather or pvc system if your using one, (there is no up side to running a road draft tube) which is a good idea even if not originally equipped that way. Mike
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Old 03-13-2012, 11:57 PM
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Thx Mike,
The motor is actually out of a 1967 LTD and doesn't have the draft tube. It has a PVC in the valve cover. I'll have to find a valley tray on E-bay I guess. They sure are pricey for a piece of sheet metal.
regards, Dave
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  #18  
Old 03-15-2012, 01:34 PM
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Hey guys, for the sheet metal stock to block the cross overs; would something like the thickness of Pro panel roofing be about right? How does it hold in place? Can I just hold it there with some gasket sealer and then assemble the rest?
Also, would it be OK to just put epoxy in the head portion of the cross over instead? Being that the heads are new and clean I thought that might be easier.
thx, Dave J
I ordered a valley pan on E-bay $80 with shipping! Dang, that's pricey.
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  #19  
Old 03-15-2012, 02:11 PM
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Use some steel shim stock with your gasket. Epoxy breaks down under heat, so don't use that on any hot engine parts. I don't know about using roofing metal, but stay away from aluminum. - Dave
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Old 03-15-2012, 02:34 PM
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Thanks Dave, will do.
Just trying to make some building notes so that when I get the block back and I start building I can refer to my notes and get going.
appreciate all your help!

Dave J
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