'67 442. 4bbl quadrajet. How do I plug the intake manifold crossover? This car is only driven in the summer. This should keep the fuel charge cooler and the paint won't discolor because of the heat. On Chevies you can buy intake manifold gaskets that accomplish this. Are they available for Olds? Any other possible solutions?

 

Here are some plugs that can be ground down to fit:

http://www.summitracing.com/parts/EDL-2733/

 

The intake gaskets that block off the heat will burnout, and the plugs are prone to rattling. The best method is to pull the heads and fill the passage with molten aluminum.

 

Al filled.
Not really enough aluminum here to be able to shape the exhaust port .(I ran out !! )
Fill until it runs out the valve seat then Very carefully dremel it back to shape required .


Note the head is sitting on a bbq plate where it was preheated to attempt stopping the possibility of cracking when the hot Al is poured in.

mike

 

I have used the 2 part epoxy (not JB Weld) with good results. I cant recall the brand I used but it came in plastic tube. It is almost the consistency of play-doh. I used one tube on each side of the manifold

 

In my case, this is an understatement. I'm interested in the epoxy method, but skeptical. Could you be a bit more specific, what brand stuff, etc...?

 

If you are in pinch,you can use some sections of a pop can.Don't laugh.I've done these a few times before.Cut out enough to be able to fold the aluminum in half,to double the thickness.Use some RTV to help hold it in-place & help seal it.Place the aluminum over the port,then the whole gasket over that.It might sound silly,but back in the 90's,we did this a lot,& never burnt through the aluminum.It saved from having to pull the heads off. Filling them would be better.

 

That is a cool trick Brian!

 

Brian's pop-can suggestion makes me wonder if you couldn't just wad up a bunch of aluminum foil and stuff it in the crossover. I did that years ago on a G-body with a blown A.I.R. check valve and never had a problem again.

 

Try using some thin steel used in ducting.
I have some .030" steel that I have used before that I keep on hand for just such an emergency.
Never blew through that stuff. Sandwich it between the head, and a thick paper intake gasket, don't look back.
Mr Gasket 404/405
Jim

 

These are all AWSOME ideas! Much easier than melting aluminum and pouring it into the head.

 

Thanks for the Part #, I'll be using those gaskets and the steel ducting method very soon, in an effort to get rid of my rattling plugs.

Thanks!

 

I got the plugs and ground them down to fit nearly perfectly. I then had a friend of mine who is a pro welder, spot weld them in and groud them off flush. Hopefully they won't rattle. Thanks for all the suggestions.