Moroso 63476 - Water Outlet, Chevy, -20An, 3/8 Inch Fitting

FILLER NECK,CHEVY, O-Ring Gasket, -20AN, TWO 3/8" NPT PORTS FILLER NECK, CHEVY, BILET ALUMINUM, O-RING GASKET, -20AN & 3/8” NPT PORTS Fits: Small Block, Big Block and 90 Deg. V6 Chevy Intake Manifolds • -20AN fitting for use with steel braided reinforced upper radiator hose • Includes two 3/8” NPT female ports to plumb water to the cylinder head for additional cooling • One piece design machined from a billet bar • Clear Anodized finish • Includes mounting hardware