Well, here's a bit of the long story. The motor had never been apart. I took it to a shop, and they did a complete on it. I droped it in, and at 4,500 miles, I found a rocker problem. Wound up rebuilding everything again, had to grind the crank, it was a mess. The cylinders wound up getting bored out .040 over on the first job, who knows why, the bores were in good shape. When I tour it down, the cylinders were wavy vertically. about every 1/2" it was shiny from the rings riding on it, and recessed in between. I had another shop hone it out. Seemed to clean up everything, and rebuilt it with cast iron rings. I had the second shop put the bottom end together, and I finished it off. Now 10,000 miles later, I'm back again. So as far as the heads, I have had 2 different shops go thru them. I realize that does not mean they are still correct, but I have to assume something, until I check them. Thanks again.