Reply to "Has anyone ever used these valves?"

> Thanks Dan, those valves you mentioned about selling, would they work with
> factory closed chamber heads? That is what I have, and I was wondering since
> they are not aluminum, how well they would work, because aren't those engines
> you mentioned all aluminum heads? Would I still need to use berillium copper
> guides with cast iron heads?

The guides and seats in cast iron heads are cast iron and relatively soft.
The seats in my A3 heads are also cast iron but I can say from experience
that the seats in A3 heads are harder to cut than Aussie 2V seats. The
valves themselves should be safe but the titanium valves might accelerate
the seat wear. Thomas Thornblum (spelling?) put titanium valves in his
Aussie 2V heads and had the exhaust seats receded rapidly. He had them
rebuilt with harder seats and has not reported any further problems. I've
seen the same thing happen with stainless valves but it may be worse with
titanium.

Dan Jones