is it possible to install valvesprings and retainers with out pulling the head? ive got a b18c1. please help

 

It is. I got this kit and it came with the air valve adapter that you need to keep positive pressure in the cylinder in order to keep the valves in place. Best $50 I've spent in a while.

 

Those work like a charm, If you don't have acess to air. I know some people stick rope through the spark plug hole and fill the chamber. Its possible to still bend or fock up a valve. I reccomed the air adapter.