The young Reds trailed to a Morgan Rogers strike in the 10th minute but Paul Glatzel’s quickfire double turned the score around almost immediately and Bobby Duncan added a third in the final seconds of the first half.
The strike duo netted once apiece after the interval, too, as Barry Lewtas’ team eased to an emphatic and impressive result in Kirkby.
An even start to proceedings was interrupted when the visitors struck first.
Eoin Ashton slid a pass into Rogers inside the left channel and the Baggies No.9 ducked in and out of the recovering defenders before sweeping a finish across Vitezslav Jaros into the bottom right corner.