So I have white smoke coming from inside the engine. I was told is the LIM gasket. So if Im going to be removing it, I guess it the time to port it.

Now, how do I go about it? Do I just smoth the surface or am I increasing the diameter of the holes? Can some one that has done it before give me some pointers. Ive done this to my TPI engine, but I had altered gaskets that I used for size. In this one I have no idea how big to go.

to match the lim ports with the heads you will take off enough material to get to .900x1.900 in. i used a dremel carbide cutter for the bulk of the cutting. i started using the small drum sander for the last portion to give it a nice smooth finish. i would give ur self @least 20 thou room for the sanding.

so basically what Im doing is matching the LIM to the heads.

You got it.

Very important not to go any larger than the heads opening.......unless you open up your heads opening also.

Slightly SMALLER than the head opening is a little better.

Here'* one:
http://www.bonnevilleclub.com/forum/...+strikes+again

Everyone else that'* done one, post your links.




It'll cost you a dremel tool, a few bits, and some gaskets.

Locked for double posting. Alex, this question belongs in your other current Performance topic.