[Vwdiesel] NA exhaust valves for a TD head?

[Shawn Wright]

In speaking with Peter at Bowwow (the local VW parts place), I was told 
they have supplied standard NA valves for TD applications for years with 
no problems. These are about $12 vs $40 for the proper sodium filled TD 
exhaust valves.
I'm curious if anyone has any thoughts on using standard valves for a TD 
application (hydraulic). I was thinking I could replace all the guides, then 
measure the valves. If they are in spec, leave them alone. If one or more is 
out of spec, I should probably replace all of them with NA valves, rather 
than have a mismatch. Or spend way more money can get the TD valves...

Shawn Wright
http://zuiko.sls.bc.ca/~swright
'85 Jetta D 
'88 Westy 2.1L, soon to be 1.6TD 5 speed
'82 Diesel Westy