Exhaust valves Ti or S.S. 800 poo

[taggart]

I have a 800 polaris, I don't know what year it is, I has the RER, the only numbers on the block 0001923 nothing else. I have two sets of exhaust valves, one set are Stainless steel, the other are Titanium. I've heard mixed remarks on the Ti valves, dose anyone have any input on them? and what they might be worth? or on how I can find out what year this 800 is?
Thanks

 

[taggart]

From all Ive found out, looks like I'll be use the S.S. valves.

 

[Rockwerx]

What did you find out? I have both sets but have been running the Ti ones in my sleds. Why did you switch to SS? Didn't thay make some out of Al also?

 

[taggart]

I heard that the Ti valves had problems just braking and droping into cylinders, so I went with the S.S. valves. It makes more sense to me anyway, S.S. is hard, durable and can with stand high temps. Polaris did make some Aluminum ones, witch is just retarded seeing how the melting temp of aluminum is 1225-f. After they had a few melt down, they came out with some anodized aluminum valves witch were a little better but still crap.