Have zero experience Ross with your combo but (and you for sure know this!) it would still pay to mock same up (one piston, yada-yada...) with clay to check same. Here's why: another poster may say it's fine, he's done it, etc. But, with so many manufacturing tolerances (stack-up) you may be fine....or not.
Brings back a real life story. My bro' helped his pal do a real stock-bore (maybe +010, forget now) 427 FE years ago. But the used race heads had IIRC something like 2.19 BBC sized valves!
Right at fire-up, the valves hit bore edges, he lost like 3-4 intakes immediately with subsequent head/bore damage. I still have the left-over (Donovan SS I think) intakes and exhausts from that fateful build in my basement!
Wish I had been asked to help!