The only numbers I can find on the crank are the numbers where the rods and mains were turned down .010, there was a 35 stamped next to that. Its fairly nasty right now. The webbing does look different than the other 390 blocks I've seen. The webbing is flat on both sides instead of just one. I also measured the stroke using a plain old tape measure, yep 3 5/8, not .50 or .75 but dead center these two. Another note is that most of the blocks I've torn down had plugs in all the
oil galleys. This motor has them tapped with allen screws in them, I'll need heat to get them out. The engine was blue with what was left of an electronic dist.
Thanks for any info