X block sonic test

I’m not a fan of taking a block to max bore size just because it will take it. I’d rather use a bit less bore and leave some room to go to the next oversize.

You can get pistons and rings in virtually any bore size. So maxing out bore size isn’t my thing.

If I was going to do anything with your block, and I wanted more bore, I’d probably go to a 4.080 bore and then you can go up in .005 increments from there if you need to go bigger from there.