So I just pulled the driver side head to helicoil a header bolt hole and happened to notice that the cylinder walls still have a somewhat fresh looking crosshatch pattern from honing. the part that baffles me is that this motor is supposed to have about 80k miles on it??? Has anybody else seen this?

 

My car has 95k miles on it an it still has the cross hatch pattern in the walls!

 

At 84,000 my old Z still had the cross hatch pattern in each cylinder.

 

Experiencing any oil useage?

 

maybe almost a quart between changes, it seems to depend on how often I go to the track

 

Modern oils keep wear to a small extent compared to 40 years ago. I've seen hard used Marine BBC's with over 850 hours use with a well intact crosshatch.