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Moroso Chevrolet water outlet filler neck with a 20AN O‑ring connection and two 3/8‑inch NPT ports suits big‑block and small‑block engines that need larger AN plumbing plus accessory ports. The aluminum neck provides a sealed main fitting and two NPT fittings for feed lines or sensors, offering versatile outlet plumbing for Chevrolet applications where custom coolant routing is required.
Moroso Chevrolet Big Block/Small Block Water Outlet Filler Neck -20An w/O-Ring & Two 3/8in NPT Ports
