10V head mod qustion

[Michael Gough]

> So, you put a 40mm valve in a 38mm seat?  If the 38mm seat is still in there
> how will you improve flow ???  How will it seal correctly?  Seats are not
> the easiest things to install, Nevermind bigger ones. it might be cheaper to
> find a head w/ 40mm intakes than pay someone to cut in the new seats, then
> you will have to port it to match the bigger seat.  Its more work than you'd
> think.

You can always use the NF head, and put the sodium exhaust valves in it. You
can find them cheap too. This seems a lot easier than putting in new seats.
Maybe don't even put in sodium valves.....I haven't burned a valve yet,
though I'm only running about 10psi on my JT.
Mike