the silver washers are for like, threading into the block, or on something that isnt tapered.

i put teflon on the threads that go into the engine, and turbo.

basically, thread the outer piece of the an fitting onto whatever its going on, (turbo, engine, coolant neck) tighten that, then figure out which end fits where. if angled hits something, use straight, and vice versa.

one bigger line should go to your coolant neck, and the other behind the head to the coolant line.

heres a pic of mine, you can kinda make it out.