I hate to unearth this thread, but I think I may have another reason to add to the list... The nightmare all started when I pulled the drain plug and got nothing but pure water.

I then pulled the head off my 216. As it was left with the carb off for years, I believe water got into the cylinders through the intake. I think it came in through the split in between the 2 pieces of the hood.

Here is a link: https://drive.google.com/drive/folders/1xG1BIuCZ7Xbk0CO659pNOQ36mr0dI3Ex?usp=sharing

Has anyone successfully dealt with this much rust in the cylinders? #4 is terrible, obviously had the intake valve open when parked. I currently have diesel soaking in the cylinders. My next step is to clean out the rust and unstick the pistons to inspect the extend of the rust damage. Whether or not I go further, I want to know what it looks like.

Again, this is the matching block so I am willing to spend my pennies on boring (maybe decking the block and perhaps sleeving #4?) to get it right again. But is she too far gone? Thanks.

James


1951 GMC 9430 long box w/ hoist
1952 GMC 9430 long box w/ hoist (sold)