318 stroker - Piston itch....

Had he not went with the 2.02 valve in the small port head then he wouldn't have had this problem, if he wanted the 2.02 for some reason then the better choice would have been the 360 head with the 2.02 valve and now the valve would have been farther in the chamber and not protruding above the deck of the head. This would have given him about .100-.120 more clearence, and may not have had any interference with the pistons. Also the port would have worked much better for the valve size that he used, and it wouldn't have been so restrictive.
I think that he thought that he was doing the right thing and went too far, bigger isn't always better and this is just one case of trying to improve the wheel, which in this case hurt more than it helped.
I've spent hours maxing and figuring out how to get the most HP and Tq from this combination with a given head and bore size, and tried to put it as palinly as I could so this would be a easy engine to build without any drawbacks, but I'm wrong and now theres problems. This is why I stated what valve size and head to use with what parts, and deviating from this made problems that shouldn't have been there to start with.

Also I used 360 heads not 318's with a 1.88 valve, this too is a deviation from the thread.