The marked # 1 position on the distributor cap faces to the REAR
Easiest way to find it is to set #1 piston at TDC and remove the distributor cap to see where the rotor is pointing. It should be pointing to #1 cylinder position in relation to the distributor cap.
number one wire will point to the number one cylinder
Follow wire from # 1 cylinder to cap. check position of rotor. see link
On the 5.0 liter and 5.8 liter V8 engines , # 1 on the distributor cap faces to the REAR and slightly towards the drivers side On the 4.9 liter straight 6 cylinder , # 1 on the distributor cap faces AWAY from the engine
if its a v-8 it is 18436572 number one on the cap should be pointing at number 1 cylinder is there a picture of the cap
If you look at the distributor of the car, sometimes they are marked with the cylinder number on the cap. Find number 1 and follow the spark plug cable to the spark plug. That will be No. 1 cylinder.
There is a number "1" on the distributor cap. Follow that wire.
No 1 cylinder is in the 5 : oclock position - 18436572 clock wise.
To find the number 1 plug wire on the distributor cap of a 440 Dodge engine, start by locating the distributor and the cap. The number 1 cylinder is typically the driver's side front cylinder (nearest the radiator). From there, follow the rotor's rotation direction (usually counterclockwise) and place the number 1 wire in the corresponding position on the cap, then continue placing the other wires in the proper firing order.
A good quality cap has number 1 labeled.
Most caps are marked for where cylinder 1 goes.