Wayne Partridge Sr.
Newton, KS
His clay was Plat Dou
Here's his last claim:
"Mark, what you see there is some of the blue dow that simply came off with the head and stuck on the valve. In a situation like this the complete valve area would be crushed, not two small holes. I remember the material when I removed it and it was setting in the studio. It had set up and was hard and the complete intake and exhaust ports were almost 200 thousands thick. That cam was not that big, under 700 lift, nor was the rocker ratio over sized. All normal and well below critical standards".
I did see the gauge on the video stating .2100, but again that was not in the relief. The still shot will amaze you all. The video also shows him applying
oil on the clay so the material wont stick to the valve!!