What NPT input does the fitting that goes into the head have. I want to run an AN fitting directly from there.
Lethal Performance GEN 2 Head Cooling Mod
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Open Jul 23, 2025 - 01:50 PM
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Jul 23, 2025 - 01:50 PM
Hello! The port in the Cylinder Head would not accept an NPT Fitting. You will need a similar style fitting that is provided within the kit that utilizes an o-ring to seal. From there, you may be able to get a different style fitting on top, but it would be custom.
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Lethal Performance GEN 2 Head Cooling Mod
Lethal Performance GEN 2 Head Cooling Mod **Works only on 99+ 4.6 DOHC Vehicles** This Generation 2 design uses an O-Ring seal and a retaining plate to secure it in the cylinder head. A benefit to the newer design is that it can be installed on supercharged applications (03 Cobra-style set-ups) with...
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