I just got through rebuilding my 52 flathead and it's overheating like crazy. Put in a lot of money and I'm very sad today. Just got this pickup on the road last week and took it around the block for the first time since I have owned it. Must have a crack in the block...probably just didn't see it. Never got it Magnafluxed...bought the truck from my old boss back in 1986 and had it in storage. He used to bring it to work when I was working for him. He decided to sell it and I jumped on it. I will still keep the engine....can't see putting the Chevy 350/350 combo in my Ford!