Even if the engine was a 'correct' LA engine , I'd still dump it . MPC's 'generic' 273-318-340-360 is un undersized piece of junk , whose appearance is more like that of a 3.9 litre V6 ! Okay , to be fair , at least the 1977-1980 Volare kits' LA engines looked better than their predecessors : correct air cleaner assembly , 727 transmission , and just better proportions . If one is going to swap engines --and they wish to display their van's engine-- then why not go all-the-way and pop the AMT 1971 Charger R/T 440 Mag / TorqueFlite in there ? Yeah , I know that 1978 was th last year for the B/RB series , but that's of no consequence in a customised vehicle .