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<x-charset iso-8859-1>The solid inserts I was referring to is a permanent thing I've seen installed. About the 3/4 - Length, again I've seen it done with these permanent inserts, it just sticks out a little more at the top. Anyway, just my 2c with SP's Herman > > I'd recommend, if you pull the head, not to go with the helicoil as > > this is at best a temporary fix. Rather have a machine shop do inserts > > - if you can have both heads done go to 3/4" thread. > > The 3/4" dimension is the LENGTH of the thread and there just isn't > that much metal there. The SP hole is crammed right in between > the 2 valve seat inserts, so increasing the diameter to 3/4" (even if > there was such a size) would weaken the head too much (it's > already weak there.) > > > - > ******************************* > Jim Adney, jadney@vwtype3.org > Madison, Wisconsin, USA > ******************************* > > ------------------------------------------------------------------- > Unsubscribe? mailto:type3-request@vwtype3.org, Subject: unsubscribe > </x-charset>