You should find the real number either just above the oil filter housing or on the flywheel flange near the oil dipstick2005-10-05 14:42:35 | steve nelson writes:im currently in the prosess of buying a1968 series 1.5 XKE the car has open lights series 1 bumpers and lights it has rocker switches ,easy clean whire wheels with non eared spinners, I think this car is a very late 1.5 The car came back