This water outlet restrictor kit fits all GM V-8’s, V-6’s and SB Fords. The kit includes three restrictor plates with different sized holes; a 5/8", 3/4" and 1". This allows you to fine tune your cooling system for optimum performance by restricting the outlet flow of water from the engine thus increasing the pressure within the block. This limiting the possibility of steam pockets forming and allows the coolant to absorb more heat.

This filler neck flange accepts a standard radiator cap and fits Chevy intakes. It can also be used as a replacement top for our water necks.

This billet weld on fill neck is ideal for use wherever a heavy duty, custom application filler neck is required. 6061-T6 billet aluminum construction, for durability in racing or street applications. Includes 1/8" NPT to 3/8" barbed fitting for plumbing of an expansion tank. Accepts standard radiator caps or our #81-016 and #81-030 or Billet Cap #81-116.

These black anodized aluminum bleeder necks come with a petcock and can be used as a replacement top for our water necks

This block off plate can replace the filler neck on our #80-000 and #80-006 water neck kits when a filler neck is not desired, or it makes an ideal base to weld your own radiator hose fitting to the intake manifold. Black anodized for good looks with 6061-T6 Billet aluminum construction, for durability in racing or street applications. Two pre-drilled mounting holes ensure a perfect fit to the intake manifold.

These outlets replace the standard water necks on Chevy intakes so that a -16 AN fitting and a steel braided hose can be used instead of the normal radiator hoses.

This aluminum filler neck flange accepts a standard radiator cap and fits Chevy intakes. It can also be used as a replacement top for our water necks.

This extended fill neck raises the water fill point 6" above the manifold, which is ideal for bleeding off air within the cooling system. 6061-T6 Billet aluminum construction for light weight and durability in racing environments. The fill tube is angled at 45-degrees to provide clearance for large air filters, scoops, etc. Includes a 1/8"NPT to 3/8" barbed fitting for plumbing of an expansion tank. Accepts standard radiator caps or our #81-016 and #81-030 or 81-116 Billet Cap. Designed for use with our #80-000 or similar filler necks.