personally i would say go with the 67... sure the 68 has the 455 but the 66-67 styling and value in the long run is way more appealing, especially since the 425 engine is basically GOLD, i've rarely seen any remanufacturer rebuild those motors cause olds only made them for three years 65-67 and only the 66-67 were specially made for the toronado
... so i say go 67 heck you as one of the guys above said you could always put the 455 into the 67
