Blistering centuries from Joe Root and Jos Buttler fired England past 400 for the first time in one-day internationals and to a remarkable 210 run win over New Zealand in the series opener at Edgbaston - their largest ever runs victory in the format.

Despite losing Jason Roy to the first ball of the match, a new-look England side played with considerable intent after visiting captain Brendon McCullum asked them to post a total.

Root raced to a 71-ball ton thanks to an array of sublime strokes, although he departed caught behind for 104 to Trent Boult - the only New Zealand bowler to truly escape the carnage with figures of 4-55.

That wicket fell during a mid-innings wobble as England slipped from 171 for two to 202 for six, bringing Buttler and Adil Rashid together for a devastating counter attack with 20 overs remaining.

Buttler took 66 deliveries to reach three figures, eventually scoring 129 - the best ever score by an England number six - while Rashid's 69 came amid the duo registering a world-record seventh-wicket partnership of 177 that lifted England towards a mammoth total of 408 for nine.

Leg-spinning all-rounder Rashid then starred with the ball, taking 4-55 as the chase got away from the recent World Cup finalists and they collapsed to 198 all out.

A victory for the history books seemed unlikely when Roy skewed Boult to Martin Guptill at backward point but Root and Alex Hales rebuilt in a quickfire stand of 50 before the other opener pulled the same bowler to Matt Henry.

England skipper Eoin Morgan and Root made hay as the swing McCullum anticipated failed to materialise for his seamers, although Mitchell McClenaghan trapped Morgan for a 46-ball 50 to end a 121-run stand.

Root celebrated a majestic century with a on-field jig but departed an over later in the 25th.

Ben Stokes was furious when he dragged Boult onto his stumps and the hosts were tottering when New Zealand spinner Mitchell Santner won the battle of the debutants by trapping Sam Billings lbw.

There would be little else to cheer for the visiting attack as Buttler crunched them to all parts and Rashid chipped in with inventive strokeplay.

Buttler performed a signature scoop shot down to fine leg and thundered the embattled McClenaghan (2-93) through the covers next ball to bring up a stunning century that featured 13 fours and five sixes.

Medium-pacer Grant Elliott found himself on a hat-trick during the final over but Liam Plunkett smashed two of his next three deliveries for six as England sailed beyond 400.

McCullum put Steven Finn to the sword in the World Cup three-and-a-half months ago and, having been hit for consecutive fours, the Middlesex paceman was ecstatic when he found the top of his opponent’s off-stump.

That body blow came from the final ball in the first over of New Zealand's reply, during which they continued to score merrily despite Finn having Guptill (22) caught at the wicket and Rashid claiming Kane Williamson (45) as his first international wicket since 2009.

The Rashid googly saw off Santner, Luke Ronchi and Henry as New Zealand disintegrated from 185 for four. Finn (4-35) returned to trap half-centurion Ross Taylor lbw and Chris Jordan removed McClenaghan to seal a stunning triumph.