ok im rebuilding a 91 dodge 318 motor for my ramcharger,but i ran into a snag, and extra freeze plug in the shape of a contact lense. on the dome side it has written "EP20 1/78." ive heard it goes in the back freeze plug behind the cam, but i dont know which direction the letters face and since its so hidden i dont wanna guess the direction and blow up a motor with 4k put into it? any ideas? i have noticed when i tried to put the cam in, that it has an extra half inch that it can go back. i was told chain tension holds it in place. but then where does this extra freeze plug go? someone please help me!!!