thanks for the input everyone.
Originally posted by atomarc:
63ChevyNova,
WOW....that sure looks like a rebuild to me. You did get a deal on it for $700.
yup, I think it's kinda purdy... too bad the rest of the truck doesn't look as good as the engine... all in good time I guess.
I guy I got it from a guy that was restoring an old firetruck from the 40's or 50's I think. In the end he decided to rebuild the original engine, which was something that I'd never heard of (he said he had only found 1 or 2 other people using the same engine). He posted it on ebay 3 times, I was pretty much the only one showing any interest in it.
anyone heard this(a friend from hotrod.com found it)? have any specific suggestions about what type of oil to use?
From lazercams.com
TechNote:
Under pressure from the major Detroit automakers, the engine oil manufacturers have removed the zinc additive from engine oil. The really bad news is that this increases camshaft and follower failure rates enormously during the break-in time. If you can find a zinc additive for engine oil, that helps greatly. GM's EOS [Engine oil supplement] break-in lube has been a faithful option, too. I have heard that the Valvoline racing oil that's labled "not for highway use" may still have the zinc in it. Napa has made a commitment to keep this oil in stock.
There have been no changes in camshaft or follower materials or heat treatment from ANY of us in the racing aftermarket. The increased failure rates are due to the missing zinc in addition to the usual assembly related problems we've been discussing the last thirty years or so. Keeping open spring pressures as low as possible is now more important than ever.
