Moroso Dry Sump Oil Pumps
Four-stage dry sump pumps have one pressure section and three scavenge section, one for the lifter valley.  This keeps oil from sloshing around in the top of the engine and running down onto the rotating assembly reducing windage and increasing horsepower.  The five-stage pump is basically the same but has four scavenge sections to create higher crankcase vacuum needed by today’s large displacement drag race engines.
     
Part #
Manufacturer
Product Name
Price
Moroso Performance
$946.99
Moroso Performance
$1,183.99