First, Thanks to d2d2's posting of Casting Numbers in Teck Talk I was able to find out the following. The block number on my car is 836409 indicating it's a '31. The head number is 835503 indicating it's a '29. Will that cause a running or idleing problem? It seemed to work OK when I ran it 30 years ago and thought it was the carbruator that caused it to idle a little rough. Hate to put it back together if it wouldn't run just right as I have an other head #836273 indicating it's a '31. This came off a block # 836573 indicating it's a '32. Would like to put the '29 back on and try it as the '31 would have to be completley redid. Not much of a problem to change heads and not even sure the '31 isn't cracked or wraped. Thanks. Oh My Gosh, I can't get the spell check to work.

The '29 head should work ok on the '31 block. The only difference I can recall is that the '29 has smaller valves and a different location of the temp sensor.

Thanks d2d2, Just checked my '31 head and found out one rised valve holder is broken off so will check out one more I have on an old motor. Hate to scrap an old head but I don't think it can be repaired.

Are you talking about a valve guide? If so, no problem since those can be replaced.

Well, I guess that's what maybe you would call it and I didn't realize they could be replaced. Will check it out. Thanks for the tip. Now I'll tip one.

Sure! Valve guides can be replaced and you can buy them brand new!

Great, Will take it in and see what the machine shop says. Same place I'll have it boiled out at.