6=8 and bore over?

BillGrissom said
I have tested compression w/ throttle propped open and closed and noticed no difference in readings, but open is smarter. When I measured 90 psig in one cylinder of my 1969 slant, it soon started showing a clean spark plug (raw, unburnt gas). I removed the lifters and push-rods in that cylinder to keep the valves closed and ran it for a year or so until I swapped for a rebuilt long block. When I pulled the head, that cylinder was perfectly clean inside (i.e. no combustion) and the cylinder walls were noticeably scuffed. If I recall, it was cyl 5, which also seems to be the one that likes to put the rod thru the side of the block, at least for several members here. Coincidence?

It's funny you should say number five I just recently bought a used slant six and found it off that the side of the block had like a blob of welded material hahaha. Didn't think.mych of it since the engine ran perfectly fine and didn't see any blow by or any serious noise. Well when I brought it home it was a ***** and a half to put it on a engine stand since I was going to seal up some gaskets and put a new timing chain on it. But only to mess ip and brake a piece of the block off since it was to heavy im guessing or I wasn't careful enough to set it on the stand and pretty much fucket my project up hahaha. But then when I started taring it apart to use the good parts inside I come to find out that the block was already 30 over and thus making since of that blob weld on the side of the block. But good thing because now I have e thirty perfectly good pistons and a nice crank to go with a block I have on the side that I'ma bore out thirty and put a nice comp cam on it and deck the block. And finishing move a nice four barrel and headers hahaha. But man that number five pretty sure it happened to this block too hahaha. Oh and the walls and engine was clean so far walls still have the dingel ball marks on it pretty sweet