Need help choosing exhaust valves
Posted: 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.