Yes this R3 engine has roller lifters but not without extensive machine work, the 59* block is not machined for rollers but the 48* block is. It cost me more money to set this engine up for rollers than it would have cost to buy the 48* block and all other costs that come with that block, plus the vale geometry with the 48* block is much better.
Good for you ... a baby Mopar, extremely dangerous to law abiding citizens, and pedestriand. Drive with caution, and " attempt" to stay within the law. Nice rocker arms!