Just seven minutes had passed when Eikrem turned in Joshua King's centre, and King claimed his second assist just before the half-hour mark when he found Morrison with a long ball forward, and the tricky youngster arced home a cute lob.
Within long, Ajose clinically turned in United's third from close range to effectively end the contest. Ole Gunnar Solskjaer and Warren Joyce made seven changes at the interval, and substitute Brady quickly set about turning in an eye-catching performance; smashing a long-range effort against the bar before curling home a sumptuous shot.
Skipper Cameron Stewart thumped a shot against the Curzon post, while Zeki Fryers and Oliver Norwood both came close. At full-time, United legend and Curzon president Jack Crompton presented the trophy named in his honour, marking a highly satisfactory start to pre-season preparations for the Reds.
United: Devlin (Johnstone, 46); Wootton, Chester, Gill, Dudgeon (Fryers, 46); Stewart, Possebon (Norwood, 46), Morrison (Tunnicliffe, 46); Eikrem (Lingard, 46), King (W Keane, 46), Ajose (Brady, 46).