Going clockwise on a V8, starting from the #1 position, it is 18436572.
Rotor turns clockwise.
The firing order is 1,8,4,3,,6,5,7,2. The left bank(side) is 1,3,5,7, and the right bank is 2,4,6,8 starting from the front to rear.
The wiring order also called firing order is 18436572 some distributor caps show the #1 plug connector, which in most cases is the first post on the right side facing the back side of the carburater. start there and go clockwise with your wires in the 18436572 firing order.
The firing order for a 1981 Ford F150 , 300 cubic inch / 4.9 L straight six cylinder engine is 1 - 5 - 3 - 6 - 2 - 4 and the distributor rotates CLOCKWISE
18436572 1 is drivers side front and 2 is passenger side front. direction is clockwise on distributor cap.
1-5-4-2-6-3-7-8 Rotor turns counterclockwise.
Count two diodes from the distributor plugs (clockwise) that is number one. The firing order is 1 8 4 3 6 5 7 2 (clockwise) This is all regarding you have an hei distributor. If not its the same firing order, but the number one plug should be the one that points at the drivers headlamp, or no. 1 cylinder
1,2,7,3,4,5,6,8
165432
1-4-5-8-2-3-6-7 the proper firing order for a Chevy small block is 1-8-4-3-6-5-7-2
firing order for cadillac 1981 6.0 368 ingene 1-5-6-3-4-2-7-8
4,3,5,1,6,2 The firing order of a 1981 350 engine is 1-8-4-3-6-5-7-2