Normally I would agree, but since you can buy at least four different filter capacities, and different manufacturers have completely different guts, assuming volume of a certain filter is not a good idea if you're going for accuracy. There are filters that hold just over a pint all the way up to 1.6 quarts for some of the tall van/truck filters.
I agree, however I am using a fram PH5 that from a few sources it is a 1 qt filter. Doing a rough volume calculation (not taking into acount internals) it is ~ 1 qt.
Does anyone know the spec of the oil level from the bottom of the block. Trying to find the lenght of dipstick from the bottom of block that protrudes in the pan for a SBC...no luck yet.