1 3" Straight Fitting With 3/4" Hose Nipple and 1/2" Pipe Thread For The Water Pump. 1 90 Degree Fitting With 5/8" Nipple and 1/2" Pipe Thread For The Intake Manifold. 1 x 3" Straight Fitting With 3/4" Hose Nipple and 1/2" Pipe Thread For The Water Pump.