Outgoing Canberra prop Shannon Boyd says the lure of career security and uncertain changes to the interchange system convinced him to sign a four-year deal with the Gold Coast Titans.

But the Raiders big man is determined to make the most of his last season in the capital, declaring the Green Machine can win the NRL before he moves to Queensland.

Shannon Boyd is determined to make an impact before leaving the Raiders. Credit:Jamila Toderas

The departure of Boyd and front-row partner Junior Paulo will be offset by the arrival of English duo Ryan Sutton and John Bateman, who are both expected to join the Raiders next year.

The Raiders offered Boyd a two-year contract to stay in Canberra, but a longer opportunity at the Titans worth a reported $600,000 per season was too good to pass up.