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Subject: Re: [T3] Tuning my engine with my new monza exhaust 4 tip > On 17 Jul 2001, at 0:16, Damian Moscatt wrote: > > > I also found an email suggesting that my valve clearances be .004" for > > intake and .006" for exhaust.. Is this right or what is going to give > > me best performance. > > The number you need depends on your head, while the numbers > above are for dual port heads. I think there were several versions of > the single port heads, so this is going to be hard to answer. > > BTW, the breathing of the single port heads is pretty poor. There > may be little point in adding the special cam and exhaust to this > engine. > > - As long as he doesn't have '64 and older heads, the .004 and .006 is correct. All heads made for '65 and on were .004/.006. This includes 40hp and up. There were some adapter kits to upgrade the older heads to the later adjustment, but these involved removing the existing rocker mounting studs, and installing the adapters into the head. I usually just set them at .006 all the way across. Russ Wolfe russw@classicvw.org http://www.classicvw.org/ ------------------------------------------------------------------- Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe