I bought a sleeved H22A block from Dennis Lui a.k.a guyuenvy a little over a year ago. I have been having low oil pressure since I bought it (which is probably why he sold it). I would get about 3-5 psi at idle, but normal pressure while driving. The oil pressure also increased slowly when I reved the motor as opposed to jumping up quickly. It also seemed to use a lot of oil. No leaks anywhere noticeable. The rod and main bearing clearances are fine. The oil pump is fine. Last week, the block failed on me. I'm not getting any oil pressure at all now. What could be wrong with the block.

 

bump

 

Wow, no one out there has a clue? Where the professionals at?