[johnneilson]

Tucker valve seats in Texas.

You do not need anything such as beryllium seats or Ti or inconel valves in the block.

Yes, I have used all 3 of these in attempts to keep the valve train under control at 7k revs.

In fact, I made a seat from 1144 stressproof stl in a pinch not expecting it to survive but it has done great, just have to remember to easy on it with the stones.

As Pete says, 4130 works great too.

John