No, the reason they came out with the 360 is to compensate for the new emissions that choked down the engines so they gave them bigger engines to compensate for the "parasitical loss" from the emissions.
Then they phased in the 360 and phased out the 340.
The 360 replaced the 340
the 400 replaced the 383
The 318 and 440 took one for the team and dealt with the losses.