Hmmmm GM service wank factor!
What's wrong with cranking it over numerous times without firing or doesn't the GM pump push enough at cranking speed?
If the old motors could be
oil primed with a drill I'm sure cranking off the starter isn't going to be too much different - tell me I'm wrong!! Its not as if it's a race engine be gods!
Better buy some ear muffs too so those delicate ears don't become soiled when the motor finally fires into life!!