Lunati Lifters

The “dumb bell” lifters are just slant lifters.

Milodon used to market them as “light weight” performance lifters.
They’re actually about the cheapest Mopar solid lifter you can by.
I tried them in a BB once, in the 80’s.
My experience in that motor was almost zero oil pressure.

Swapped to traditional lifters with no oil band...... plenty of oil pressure.