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Moroso 63421 - Moroso Filler Necks

Moroso 63421 - Moroso Filler Necks

JEGS Part Number: 710-63421

Billet Aluminum Filler Neck
  • Small Block Chevy & Big Block Chevy
  • Bolt-On
  • Adaptable Outlet
  • Anodized Black

    Moroso 63421 - Moroso Filler Necks Details

    Billet Aluminum

    Manifold-mounted filler neck base is an adaptable billet version of the one included in Moroso Kit No. 710-63420 without the filler neck or mounting hardware

  • 1 inch NPT machined port is designed to use with popular hose adapter (including -AN) sizes
  • Allows you to install a variety of bolt-on style filler necks (radiator cap or -AN style) or block-off plates, offering cooling system flexibility for both race and street applications
  • 6061-T6 billet aluminum base stands 2 and five-sixteenths inch tall, which locates filler neck at highest point to bleed off air on cars with low-mount radiators
  • Includes a one-half inch NPT machined port for installing a water temperature sending unit and two one-quarter inch NPT machined ports to plumb return lines on popular aftermarket cylinder heads
  • The unit can be flipped 180 degrees for either right or left water hose outlet location
  • Use with one of Moroso's Bolt-On Filler Necks Nos. 710-63460, 710-63461, 710-63465, 710-63466 or Block-Off Plate No. 710-63471

  • Moroso offers a variety of filler necks to fit most every application.

    Moroso 710-63421

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