Why not a 413 ?

And some of the industrial/marine/motor home service blocks were cored on 440 water jackets. Sonic test and best of luck with what you can come up with. I myself probably wouldn't use 2.19/1.88 valves in any big block Mopar with smaller than a 4-3/8 inch bore. Chevy's do it with a smaller bore but they get benefit from it because of the canted valve angles help un shroud the valve as it opens away from the bore wall. If you already have heads with 2.19/188 it wont hurt anything, but you'd probably see better gains from 2.14/1.81 sizing. And I'm thinking that even the max wedges with their larger ports ran a 2.08/1.88 valve combination, but I'll have to double check that.