Worked more on tear down tonight. Got everything off the block except for the freeze plugs which I'll try to get out tomorrow before I take it to the machine shop. I looked at the oil galley plugs this morning for about 2 seconds and assumed a 3/8 extension would fit and NOPE it's 5/16. Well at 9pm it's not like you're going to town to buy a plug remover if they even had one so I made one. The first one ended up stripping the threads out of the nut so I welded prototype #2. I ground the head down to 5/16 square with the world (mostly). Lastly, I took a bunch of measurements on the bore and I won't lie, I'm second guessing myself here. I quadruple checked my zero with my mic. My block is stamped with an A meaning 0.005 overbore from the factory. I can't figure out for the life of me why most my measurements are under. I set my dial bore zero at 3.5675
For anyone reading this wanting to do a tear down, they sell this tool which is the proper tool to remove the 5/16 plugs.
