question for you experts

[yooperman]

I'm gonna be putting new rings in my 350x since I have it tore down. Because DC is fixing my exhaust studs, the pics he posted of the head are of my head lol. Any ways my question is its on original bore size no boring done to it, I don't have any of the fancy measuring devices beside tape measure lol was wondering what size hone do it need there all in MM measurements. What is the correct size do I need.

[Slingblade]

I think standard bore is 81mm. If you have a local auto machine shop, take it by and let them measure it and check it for roundness. If you've got a round, smooth bore they will probably have a ball hone the right size, a little oil and a couple zips, a good cleaning when you get it home and your set. A local shop did mine for free.