Alot of people know so much about building nailheads on this website. So according to them, this engine shouldn't run...
Is this the blown Gasser that has a couple of you tube videos out there? If so, the car is pretty cool and has lots of nice fab work, Sounds awesome too.
It's a blown 65' 425 nailhead bored .060 over.... she runs cool and I am not into the water jackets either....
The "wall too thin causing overheat" is a myth. That particular problem is honing procedures and surface finish.
You'd think with those domed pistons it would blow up; but these guys have made it work...I'd love to see what one could do!