Quote:
Originally Posted by Steeveedee
So, what is that "Z20 Engine Conversion" mean?
OK, I found the answer. Looks like the AIR equipment was left off and the holes in the head or manifolds were plugged! Wild! I've never heard of it coming from the factory like that, and I was a SMOG-licensed tech in California for many years.. I know plenty of people who did the plugs after the fact. I suspect that a run of engines that were "universal" as far as having the holes tapped in the heads for the AIR pipes needed the holes plugged later. Seems easier from a tooling standpoint. Plus, the SMOG stuff was changing rapidly in those days.
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If I'm not mistaken, this shows on Fremont, CA built trucks that were delivered to states other than CA.