Nope, not sure at all. It's a 2000 sport with 186,500 miles.
I bought this as a non-runner. The seller had bought it 6 months before and after changing the oil, heard a knock. He took it to a shop and they told him it had a broken piston skirt on #6.
They "rebuilt" the motor... he drove it about 100 miles and then smogged it. It passed easily, I have the printout. He then drove it another 300 miles without incident and then it just quit. He contacted the shop that did the rebuild and they told him they were too busy. (1st red flag)
He took it to another shop and they told him it had low compression. He gave up and sold it to me.
I got it home and sure enough, 65 pounds +/- on all cylinders. I checked the valve timing and it seems correct. So I pulled the head hoping to find an answer.
Observations:
Head looks good, no antifreeze in the oil or top end, no evidence of cracks. It doesn't look like was surfaced or rebuilt.
Pistons are STD bore, but not original.
Block has been out, painted and has new freeze plugs.
At this point, I would like to pull the block and rebuild it correctly so I know what's there. I suspect the mechanic just changed pistons and hoped it would fly.
I bought it right, so I don't mind spending a little to do it right, for the long term.
Thanks for the tips.