In a message dated 2/3/00 4:13:52 PM Eastern Standard Time, 
curt.onstott@orst.edu writes:
<< Do you have any idea whether larger valves could be fitted economically? >>
Curt:
I haven't been there on this issue, but it is my understanding that larger 
valves can indeed be fitted, but not really economically, at least not as I 
define "economically".  Listers correct me if I am wrong, but in order to 
install larger valves it is necessary to "reseat" the head, which involves 
drillingout the old seats and machining in new seats.  I remember reading 
something about "offset" drilling for the seats.
Listers?
--David C.
When everything's coming your way, you're in the wrong lane and
going the wrong way.
 
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