Hey man, they are the 360 J heads, not sure what numbers they are but 916 sounds similar, will have a look when im in the shed and let you know.
Motors got 30 thou over pistons, large purple cam, 360 j heads, new valves, new springs, new roller rockers, new double cam chain and gears, with the eldebrock rpm airgap manifold and 600 carter on top.
and yeah MOPAR"S are for the win