318 LA rebuild after losing a valve seat

OK if you soak them in oil then - without turning the motor over -install with moly break in lube- not wheel bearing grease etc
do the pressurize the oil with the drill and hex shaft
then turn the motor over at least TWICE with a breaker bar- NOT THE STARTER stopping every 45 degrees to let the springs bleed the lifters down
else you can bend pushrods and/or valves
other way is to coat with molly lube, do the pressure bit and fire it up and lett it rattle till the lifters adjust themselves
either way know where the dist is installed so the motor fires immediately