360 shortblock from Mopar

There was a point in time quite a few years back that the crate motors were being built by Arrow Racing Engines and from what I have heard they couldn't keep up with the demand and quality suffered. They switch the production to Cummins and there have not been issues since that change.

FWIW, I have two buddies that bought 360 crate motors, one 300 HP and the other 360. In both cases they dropped them in fired them up and have been driving them trouble free for years now.