Clitheroe’s Under-21s made a flying start to life under new boss Dennis Hill with an impressive comeback at Shawbridge.
Trailing 2-1 with almost half an hour gone, the Blues went into the break level thanks to Olly Stirziker’s first goal of the night.
And then after Penwortham were reduced to 10 men following the dismissal of skipper Harry Unsworth, Hill’s youngsters ran riot with four second-half goals to put their first points on the board in the Lancashire FA Under-21 County League.
"It's a good start," said Hill, the former Blues' playing favourite who came back on board in the summer.
"We've only played three games before this, so it took a while to get going as I wanted.
"But the penny dropped and we played very well in the second half. It was against 10 men, but that's not always easy, and I thought we played some good football. It's something to build on."
Hill's new-look side took just 15 minutes to go in front when striker Will Martie converted from close-range.
Two smart finishes on the break from Nathan Carroll then rocked the Blues as Penwortham hit back to go in front.
But the visitors’ lead didn’t last long as Stirziker stooped to nod in a Charlie Dewhurst cross and make it 2-2.
Penwortham were then reduced to 10 men 10 minutes into the second half when defensive lynch-pin Unsworth handled a Martie shot in front of goal.
Finley Devenney drilled home the spot-kick to put the Blues back in front and Hill’s men then took charge.
Playing some slick football, Clitheroe – helped by winger Jack Price following his appearance from the bench for the first team in last Saturday’s FA Cup exit – then dominated and went further ahead through substitute Elliott Mashiter, who burst into the box to fire home.
Influential midfielder Liam Clegg made it five with a free-kick he steered into the bottom corner from 25 yards and lively frontman Stirziker saved the best until last when he lashed home a fierce right-footed shot to double his tally and round off the perfect curtain-raiser to the new campaign.
Clitheroe: Pritchard, Devenney, Dewhurst, Clegg, Billington, Lloyd (Mashiter), Price, Clegg, Stirziker, Martie (Rogerson), Kirby (Mason).