frischtr
Silver Member
The b series didn't come out until 89 and dodge used several series of blocks they used. The newer cumming 2006 and up have different valves than the b series. Known as a 3 valve. The engines last and the drive trains are ok but the trucks fall apart.
Sorry, the 3 valve is Ford's modular engine term, the 5.4L and 6.8L gassers. Cummins has never made a 3 valve engine for light truck use. The 5.9L block was used from '89-'07. The 12v was from '89-'98, the 24v or VP was from '98.5-'02, the 24v CR (common rail) was made from '03-'07, and the 6.7L (also 24v) from '07.5 and up. All of the above are considered B series engines.