titanium valves life

hi all
can anyone tell me what sort of life i can expect from titanium valves , i have 3.75 head size in a hemi , only rev to around 8500 , also will stanless valves be ok at these revs
thanks

 

1 run!!!!!!anyway that is what I got out of the last set broke the valve at the keeper and dropped the valve. talked to donnie peterson at brad anderson and donnie said it might be the lash locks we used (manton) he said to use stewart...hope this might help you..I went back to keepers and lash caps
good luck Dave Lowe