[12Ounce]

Yeah, it is very possible to get a coolant leak into the short block thanks to the timing chain cover design. I hate coolant passages thru front covers. Why not design engine with "hose-arounds" the cover for the coolant ... and not go thru the cover? But they didn't ask me!

I'd rather have timing belts ... if this is the best they could come up with.

I bet you're going to be able to eliminate your engine knock with a little work on the bottom end.

Good luck!