I assume you have the shallow well ejector. Dayton is a motor name from Graingers. And there was a Rapidayton Pump years ago, but has long since been discontinued.
Anyhow, the answer is yes, you can substitute. Sta-Rite makes oodles of nozzle and venturi combinations. Betta Flo makes several. They always use a 1/4" nozzle and just change the venturi. This makes life so much simpler. So if you have a 1/4" nozzle, you can play with the venturi's to get the desired pressure. We do it a lot with our jet pumps when someone wants to use a jet pump with a cistern and a Cycle Stop Valve.
Since I don't know what pump you have I can't be much help with your exact combination.
We have done testing with our test bench for the 1 and 1.5 hp jet pumps with many venturi sizes from 9 to 21/32nds of an inch. The difference in pressure compared to volume is impressive.