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• Computer finite element analysis (FEA) optimized and field-tested caliper
* Ultra Lite milling has been redesigned to remove additional weight
Weld decay is reduced by the addition of titanium
Heavy Duty Nodular Iron Casting
2012 & Older Floater Kits
Weld On Radiator Filler Neck - Small (1.250" ID, 0.750" Outlet) - 6061 Aluminum LSx F-1/F-2 • Computer finite element analysisAce Race Parts offers Weld On Radiator Filler Necks that are precision CNC machined from solid 6061 Aluminum billet and come with a 1 16" NPT x 1 4" Hose Barb fitting. We provide our Radiator Filler Necks in two sizes to fit both common Import and Domestic OEM radiators, making them also suitable for custom radiator setups. FEATURES 6061 T6 Aluminum Precision CNC Machining Includes Barbed Nipple for Expansion Tank Plumbing (1 16" NPT x 1 4" Barb)