Another lane will be added to the Heads of the Valleys road between Bryn Mawr and Tredegar.
It follows the announcement of almost £82 million of European funding.
The A465 dualling scheme will see improvements to the 7.8km route which extends from the north of the A465 roundabout at Brynmawr and tie in with the previously improved A465 at Tredegar.
The work is likely to start early next year.
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Ian Paul Mcguigan and two men from Liverpool were caught after a police surveillance operation.
The case has now been adjourned until February, due to a delay which the judge blamed on Brexit.
Police described it as a 'particularly vicious crime'.