I think that one is considered the "Ram Rod 350" right? That's a bad mo' fo'......I've got a magazine article on a Cutlass with this engine and it does amazingly well in the Pure Stock Drags.
Yep, the Ram Rod & W31 engines. They were very stout, although, if I recall, the rotating assembly was heavier then the Mopar small block, the rods were not as strong, and the rocker assembly obviously left a lot to be desired :D. Still, they were pretty cool engines for small blocks back in the day.
I forgot to add, they used 2.00 int & 1.625 ext valves also....