Quote:
Originally Posted by '68OrangeSunshine
Motorist -- Is there a ''dress code'' stamped into the machined pad right by the distributor hole? The 2- or 3-digit letters could give us a clue. And the first 4 didgts will tell us where and when it was assembled.
It it IS a 1968 engine, the "1970" casting mark might not be a date but a mold number, part number, or anything else.
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I just checked and it has F0219UH stamped there.
Also, as I was cleaning the debris out of the intake and exhaust ports after scraping the gasket surface, I notice these metal tubes in the exhaust ports. They were in varying positions and the one for Cyl 1 has damage on the end. I removed the pipe plug that keeps it in the head and wasn't able to pull it out of the head because the end is damaged.
I searched and searched to try and figure out what they are because I was embarrassed to ask LOL. I came up with nothing other than noticed some heads don't even have them.
Are they supposed to keep the exhaust valves from traveling too far or something?
