Glen, I think you'll find that going much larger than stock is very
problematic on the TR4 head, the valve stem centers just don't allow room
between the valve heads. BFE does sell slightly oversized intake valves to
compensate for seat wear, and I believe they recommend replacing the exhaust
valve seats when they become worn. You can contact BFE at :
British Frame and Engine
4831 N. Ryland Ave
Temple City, CA 91780
(626) 443-0939
BFEKENG@aol.com
There are other sources of course, one is Racetorations in the UK
http://www.racetorations.co.uk/
Randall
> > Hi Arthur. My name is Glen and I own a 65 TR4 I've had it
> for 30 years
> > and I'm on my 3'rd rebuild ,engine of course, big pistons,balanced
> > everything right down to the clutch assembly.My problem is I
> need to find
> > bigger valves intake & exhaust none of the parts sup. sell them
> or know of
> > anyone . But there must be someone out there who's done this
> before ? with
> > something out of a chevy, ford, jag, If you know of someone or
> were I could
> > get the valves please drop me a line . thanks Glen
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