moroso water neck, billet aluminium, natural, radiator cap extension, 5.75in. tall, for chevrolet, big/small block, each

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 manufactured from rugged 6061-T6 billet Aluminium to withstand harsh racing environments and continual cap removal/replacement Accepts Moroso or standard-size radiator cap (not included) Includes gasket and 1/8 NPT to 3/8 I.D. barbed fitting to plumb expression tanks Includes gasket Use with Moroso Manifold Filler Neck Kit No. 63420