Water Neck Billet Aluminium Natural Radiator Cap Extension 5.75 In. Tall Chevrolet Big/Small Block (each)
Product Information
• Extended filler neck raises water fill point 5-3/4” above manifold.
• 60º incline of filler tube clears air scoops to provide accessible filling.
• Mounting base, extension tube and neck are all manufactured from rugged 6061-T6 billet aluminum 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.
• 100% pressure tested for leak-free service.
• Use with Moroso Manifold Filler Neck Kit No. 63420.

Product Information
• Extended filler neck raises water fill point 5-3/4” above manifold.
• 60º incline of filler tube clears air scoops to provide accessible filling.
• Mounting base, extension tube and neck are all manufactured from rugged 6061-T6 billet aluminum 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.
• 100% pressure tested for leak-free service.
• Use with Moroso Manifold Filler Neck Kit No. 63420.