Ken, I got another Chevy 6 on the way here.A friend is a outboard boat motor collector.He came across a free? Chevy 6 cylinder boat engine. He says its the newer style. Hope its a 292.Probably is reverse rotation. Come on Racecarl ,get that engine together.At one time I searched all over for a set of NOS 235/261 head bolts.Never found any.Finally got some off a junk engine.Mushy head bolts are unpleasant.