Jeremiah, they are custom titanium valves. 5.300 - 5.350 long, 2.2 diameter, 0.290 tip, V-Groove, 5/16 in stem, 23 to 24° tulip. If I could find something close enough to modify, that might be good enough. Thanks, Joel

[img]http://i.imgur.com/boeexFms.jpg[/img]
31 Plymouth Coupe, 392 Hemi, T56 magnum
RS23J71
RS27J77
RP23J71
RO23J71
WM21J8A
I don't regret the things I've done. I only regret the things I didn't do.
"Wise men talk because they have something to say; fools because they have to say something. ~ Plato"