Firing order range rover 40ltr v8 p38

Hello a little help needed , my range rover dont want to start since the snow fell , this is what ive tried; taken the spark plugs out cleaned & gapped, taken the petrol fuse out & turned over then put it back together & still dont want to start, checked the spark its good but not a blue spark but orange if that makes a diffence so all i want to check is the firing order from the coils to the plugs ,i know its 18436572 but i need to know how the firing order goes from the coils to the plugs if your looking into the engine , all help would be much appreciated .