Need help choosing exhaust valves

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Need help choosing exhaust valves

Postby Jitterbugdude » Mon Mar 20, 2017 7:24 am

Hey guys, I'm still s.l.o.w.l.y. accumulating parts for my Vega build (72 Wagon with steel sleeved engine) and have a question about GM original exhaust valves. I have a set labeled "370788" but I noticed a fair amount for sale labeled "3992276". Any idea what, if any difference between the two? The master parts catalogue only shows the latter part # listed.
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Re: Need help choosing exhaust valves

Postby cjbiagi » Mon Mar 20, 2017 9:20 am

There was a part number change in the early 80's, looks like they are both the same valve. GM often supercedes numbers so I would not worry about it.
Clyde.........75 Monza 2+2
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1975 Chevrolet Monza

Re: Need help choosing exhaust valves

Postby Jitterbugdude » Mon Mar 20, 2017 10:41 am

Thanks! Appreciate the help!
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