The justly famous LA series of Chrysler small block V8 engines... were made from 1964-2003. Cid 273, 318, 340, 360... wedge head engines. LA is 50# lighter & while sharing the same 4.46 bore spacing of the earlier A series.5.2 L, 5.9 are based on the parent engines (318, 360) but only the cranks & rod interchange.

There were a few updates to the engine 5.9L and 5.2L with there own problems too..