Moroso 63467 Moroso Chevrolet Big Block/Small Block Extended Water Filler NeckMoroso 63467 Moroso Chevrolet Big Block Small Block Extended Water Filler Neck Extended Filler Neck, SBC, BBC, and 90 V6 Chevy intake manifolds drag racing and street performance use Extended filler neck raises water fill point 5 3 4" above manifold; ideal for bleeding off cooling system air 60 incline of filler tube clears air scoops to provide quick and accessible filling for in between rounds cool down Mounting base, extension tube and neck are all