"pk" is not a recognised measure.
I don't know ANY cooking measurement as a "pk"
8 quart. = 1 peck.
8 12
Quarts are smaller
1/4
Quart gets its name because its a quarter of a gallon ie 2 pints.
8 quart. = 1 peck.
a qt is 2 pints 15 qt = 30 pints
15 qt
4 qt = 1 gallon 4 x 15 = 60 qt
That is 3.5 quarts.