This should have been a far more comfortable win for the Tameside outfit but instead a jittery final 15 minutes had to be endured as Chorley did what they could to try and earn a replay.
It is fair to say that Curzon dominated the game for most of the 90 minutes but it was the home side who had the first attempt on goal, all be it one that went well wide, with an effort from Danny Nolan, but is also fair to say that Peter Collinge between the home sticks was troubled very little in the opening 15 minutes but he had to be alert shortly after to get his foot to the ball when Mike Norton latched onto a pass from Chris Curley.
With the pressure being maintained on the home goal, it was the dual of Collinge and Norton again, this time the keeper getting his fingertips to a drive to turn the ball over the top for a corner.
Chorley were quick to clear the danger from the corner as they moved down the left through Neil Smith and his cross into the 18 yard area was well dealt with by Dave Birch.
A chance went begging on 21 minutes when Dougie Pringle put a ball to the feet of Norton inside the area, but as the frontman tried to get the ball from under his feet defenders had recovered their ground to take the ball off his toes.
Three minutes later and the visitors should have taken the lead when Pringle was brought down inside the area and referee Mr Johnson had no hesitation in awarding a penalty. It was Pringle who placed the ball on the 12 yard spot and although Collinge went the wrong way Pringle also sent the ball the wrong side of the upright and the scores remained level.
The deadlock was finally broken two minutes before the half-hour mark when Norton on the edge of the area drove a thunderous volley past the well beaten Collinge and into the roof of the net following a forward pass by Chris Curley.
On 62 minutes Norton had the perfect opportunity to score his second goal of the day and double his sides lead when, after beating the offside trap, he attacked the home goal, delayed his shot, went round Collinge, went for another touch, and when he finally got his shot in on goal, James Mullineux was back on the goal line to clear the ball for a corner.
The kick was driven in by Rhodri Giggs and with the Chorley defence unable to deal with the ball, Norton this time made sure he wouldn't be denied again, as he turned and drove the ball home from 8 yards.
A Giggs free kick from the left had Curley meeting the ball at the near post and his touch was true but Collinge had read the run and too the ball comfortably.
Chorley were not going to give in and a run down the right by Mike Eckersley ended with a cross which the robust Smith got his foot to the ball but Steve Intihar was well placed to collect the ball.
Nolan then tried to beat Intihar with a similar effort, but once more it was the positioning of Intihar that denied him on 73 minutes and two minutes later it was the same player, this time beating Dave Birch, with a shot across the body of Intihar but also wide of goal.
With six minutes remaining Chorley gave themselves a lifeline when they opened Curzon up down the right through substitute Phil Cooney and his cross 10 yards from goal was met by another substitute, Stephen Burke, who gave Intihar no chance.
A Curzon free kick on 85 minutes was wasted by the visitors enabling the home side to counter attack but this time the ball whipped-in wasn't met by the boot of a forward and was cleared.

After six consecutive games away from home, Curzon return home on Saturday when they entertain Woodley Sports in a UniBond North League fixture (KO 3.00) and they are back in cup action 72 hours later when they play Stocksbridge Park Steels (KO 7.45pm) also at the Tameside Stadium.
The Sheffield based outfit are the only side to beat Curzon in a competitive game this season when they knocked them out of the FA Cup on the first Saturday in September.