Well I guess it's a smog pump. I'm guessing it fell into the pile of parts the PO had. Don't think they were on 1960 V6. Is this correct? 10 years too early? If I remember 71-72 is the last ,fast, no smog, Chevy V8. HP went down after that. If you find a 70-71-72 454 BB, you are one lucky dude or duchess. My all time (old time) favorite motor....besides a 305 GMC V6 monster BB, which I just met.
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