Hey guys, I found a GM crate motor on craigslist that had 7K miles on it and was put in a motorhome that burnt down, so the firedepartment hosed the thing and water got in it, it sat for two years. I got it for 400 bucks and its in great shape BUT!

I pulled the pan and the heads, the cylinder walls have light surface rust, most of it you cant feel the difference between the clean walls, but there are a few spots.
Do you think I need to have the block bored and get new pistons?   I cleaned the cylinders and heads and they came cleaner than I thought.

Thanks guys,

-James

Its not a marine engine, its a GM performance Crate 454, I know the pics look bad but thats before I cleaned it up some,
Yeah I need to pull the bottom out and should have a machine shop atleast hot tank and hone it.

Thanks for the advice.

I havent pulled them yet, I can turn the motor over fairly easy, here are pics of the banks after a little cleaning with scotch brite and oil.