This is why I use an accusump. My car (and I suspect many others) can and often does sit for long periods. With the accusump, 80 lbs. of oil pressure dumps into the motor and pre-oils it quite nicely before start up.
I have had two magnum crate motors a 300 hp and a 380 hp both after sitting a couple days have some clatter when starting and quickly goes away. I was wondering if the right angle adapter worked on a magnum block.