So, I notice during my last oil change that cylinders 2 and 4 have a very small oil leak. I looked everywhere to confirm it was actually coming from the head and it seems true.

Speaking with my mechanic, he told me about the lapping procedure which entitles of shaving a very small wall and reseal back.

I have been considering the big bore conversion and wondering if this would be the right time to do it? I believe the big bore entitles of completely replacing the cylinders and head correct?

Thoughts on this lapping procedure invasiveness vs biting the bullet for the big bore?

Thanks
Alex Di Sessa
N171KK
#REDFOX