Another very mild 440 build.....

Probably 10-ish years ago, for a reason I don’t recall at this moment....... I checked an RPM head(1.81 ex valve)on a std bore 383 block.
Obviously there can be some variations because of core shift, slight differences in machining, etc....... but with that particular RPM head on that particular block...... on the one cylinder I checked...... the exhaust valve started to drag on the side of the bore at about .530 lift.

I would think on the 361/413 blocks, the valve would hit the top of the bore at whatever lift it took to get the side of the valve even with the top of the block.