Roller ,my guess....
Yes,
.560 Lift ~ 283*/293* Duration
In early 1970, I think it was about the 'maximum' you could get
for a small block Mopar through Crane.
I know that we got one of the 'first' Crane Compu-Cams {.570" Lift}
'flat-tappet', to run in Super Stock {SS/I} in 1971/1972.