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Moroso Manifold Filler Necks

Moroso offers manifold filler necks in a variety of styles, materials, and finishes—for applications from 1955 and up. These replacements locate the filler at the highest point to bleed off air on cars with low-mount radiators. The filler necks can be located on either the left or right side of the vehicle. They include 1/2 in. NPT fittings for the installation of a water temperature sending unit, and two 1/4 in. NPT fittings for return lines on popular aftermarket cylinder heads.

4.45 out of 5 stars ( 20 )

$62.99

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$97.99

Vintage Air Water Neck Risers

Install your sending units with Vintage Air water neck risers. These aluminum spacers solve the problem of hose clearance, port access, and not being able to use existing manifold outlets. The risers are available to fit vehicles in every decade from the 1950s to the new millennium. Connect pressure-side heater line or hose and the sending units in your classic ride with water neck risers from Vintage Air.

4.48 out of 5 stars ( 21 )

$53.99

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$56.99

Moroso Billet Aluminum Filler Necks

Moroso billet aluminum filler necks allow you to install a variety of bolt-on style filler necks or block-off plates, offering cooling system flexibility for both race and street applications. The base locates the filler neck at the highest point, to bleed off air on cars with low-mount radiators. They include a machined port for installing a water temperature sending unit, and two ports to plumb return lines on popular aftermarket heads. And, to give you versatile mounting options--these filler necks can be flipped 180 degrees for either a left or right water hose outlet location.

4.89 out of 5 stars ( 9 )

$54.99

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$96.99

JOES Racing Products Water Neck Outlets

JOES Racing Products water neck outlets are compact and lightweight. These aluminum units have a no. 16 or no. 20 fitting for your radiator hose, and the base has an O-ring for sealing to your intake manifold. JOES also offers a ported version designed with two 3/8 in. NPT ports for additional water lines.

5.0 out of 5 stars ( 1 )

$69.95

Canton Racing Water Neck Spacers

These Canton Racing water neck spacers are designed to move the thermostat and housing up 1 in. higher than the intake manifold. This increased thermostat height is helpful for cars that have radiators slightly higher than the intake manifold. They are manufactured from billet aluminum and have a clear anodized finish applied for protection. Canton Racing water neck spacers feature one 1/2 in. NPT and two 3/8 in. NPT female threaded ports to connect your hoses or lines.

4.44 out of 5 stars ( 9 )

$69.00

Clearance

URO Parts Thermostat Housings and Coolant Flanges

URO Parts thermostat housings and coolant flanges are an important part of their line of cooling system parts that also includes thermostat housing caps, hose connectors, and seats. They offer aluminum thermostat housings that are an upgrade from weak plastic OE components that frequently warp, crack, and leak due to high underhood temperatures. URO Parts thermostat housings and coolant flanges meet or exceed OEM standards, including those of prestigious European auto makers.

1.0 out of 5 stars ( 1 )

$142.99

$54.50

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$91.50

Peterson Fluid Systems Water Neck Riser Blocks

Peterson Fluid Systems water neck riser blocks are machined from billet aluminum. They come in various thicknesses and are machined to accept a thermostat. Peterson water neck risers are available with -6, -8 and -10 AN ports for cylinder head water lines, include O-ring seal, and some are available with a temperature sender port. Purchase the one that is right for you.

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