Re: 3 Angle Valve Seats ...

[JShadzi@aol.com]

In a message dated 9/2/99 2:21:49 PM Eastern Daylight Time, dfreed@bear.com 
writes:

<<  Audi requires it.  The valve seat is ground to three angles in the
 > stock engine - a section at 30 degrees to the roof of the combustion
 > chamber and a section at 45 degrees to the inside of the port, joined
 > by a band 2mm wide for an inlet port and 2.4mm wide for an exhaust
 > port. >>

    Hmm, interesting.  All the Audi heads I have seen in the US only have one 
Angle ground on the seat, the actual mating surface itself.  In fact, I am 
looking at a stock head and a head with a 3 angle side by side right now on 
my desk t to confirm it...
Javad Shadzi
88 80Q