GUY Big J 8LXB Tractor Unit

dave docwra:
I think we have to remember that back then you really only had the option of a engine which was used by the car manufacturer, the dealer would have stated cc size and model spec in the advert, if an operator was looking for a commercial vehicle in the adds, he would want to know what engine was fitted,

So why does the first advert for the '74 one just say ■■■■■■■ 220 fitted ally body.Why not also fitted ■■■■■■■ 220 ?.