Ford's Chaz Mostert will start race three at Barbagallo Raceway on pole-position as Prodrive Australia complete a V8 Supercars qualifying whitewash.

Mostert resisted the challenge from his Pepsi Max Crew team mate Mark Winterbottom and clinched his second pole of the weekend as the Ford Falcon FG X continues to dominate around the Perth circuit.

The longer 20 minute session was halted early in proceedings when the Walkinshaw Racing Holden of Lee Holdsworth spectacularly rolled his Commodore five-minutes into the running.

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Race two's pole-sitter Winterbottom joins his team mate on the front row after he fended off HRT's Garth Tander, who posted his best effort of the weekend so far after making it into the top three.

Following on his race two podium finish, defending champion Jamie Whincup will share the second with Tander as David Reynolds completed the top-five in his Prodrive prepared Falcon FG X.

Red Bull Racing Australia's Craig Lowndes will chase an historic 100th career victory from sixth on the grid ahead of Will Davison in seventh, who's Erebus E63 is fast becoming a top-ten regular of late.

The Supercheap Auto Commodore of Tim Slade posted a time good enough for eighth on the grid, just half-a-tenth slower than Whincup's effort in fourth amid an ultra-compact cluster of cars.

Tekno Autosport's Shane Van Gisbergen will start the final race of the weekend as somewhat of a dark horse as the Kiwi - who qualified ninth - sacrificed his second race yesterday in a bid to save tyres for today's mammoth 83-lap encounter.

Van Gisbergen is joined on the fifth row by Nissan's James Moffat in tenth.