Honda had brought a new 370 bhp 3 litre V12 engine for Richie Ginther, whilst Dan Gurney had his Weslake engine and Graham Hill had the BRM H16.
Honda trouxera un novo motor V12 de 3 litros e 370 CV para Richie Ginther, mentres que Dan Gurney tiña o seu motor Weslake e Graham Hill tiña o BRM H16.