Installing FAST EFI on my 440: Coolant Temperature Sensor size: 1/4" vs 3/8"?

[DocMel]

Im installing a FAST EFI on my 1968 440

The FAST EFI coolant temp sensor is 3/8"

The sensor currently in my 440 is much smaller, I'd say a 1/4"

So where or how to I install a 3/8" size coolant temp sensor in my 440?  (I have a 1/2" adapter if needed)

[Cooter]

I ran into this on My 440 and just simply drilled out the factory hole @ 1/4" pipe to 3/8" pipe, and re-tapped it..

[DocMel]

Thanks   thats what I was thinking