Been looking around, but can't find much info. I'm planning an 87mm x 97mm build for my daily driver as soon as I get my tax refund back. The plan to date is f23 crank & rods with f20c pistons in an h22a4 SH block (w/ h22 head). I'll probably start a build thread soon, but have this one big question before I commit to it...

The one piece I know already is the f23 rods will have to be bored out slightly on the pin end to accommodate the .904 wrist pin size of the f20c pistons. The thought would also be to cryo the rods before doing machine work to hopefully add a little strength to them (and ARP bolts of course). The big question for me is the difference in the pe width; the f23 rods are a mere .780", but the f20c pe spec is .940" from what i can gather.

Is this bad news for the rod? Will it put a bunch of stress on the rod if the small end can float side too side much? There aren't any specs in the helm's for tolerances of the pe width that I could find, so is this even an issue if the rod is never touching the piston?

What about adding material to the sides of the rod? Feasible? Reliable? Stupid? Custom rods are out of the question.