And I forgot the other day, I've seen worse. I was at a MM salvage yard and the guy had two Big MM power units both were six cylinders and I think may have had a 4.625x6.00 in bore and stroke. Cause it looked like a GB engine with two extra cylinders. They both had hand cranks... I didn't try to crank them, but I can imagine it would have taken a guy bigger than me to start one, even with the compression release.