Tim G Posted March 22, 2022 Report Share Posted March 22, 2022 I've been thinking for a while about adding EFI to my 64 R2 and I think I've found a good system from Fitech: The Go EFI 4 Power Adder. https://fitechefi.com/product/35206-go-efi-4-600-hp-power-adder-bright-aluminum-efi-system-with-force-fuel-delivery-master-kit/ One required part of the install is a coolant temp sensor that is 3/8" NPT. I haven't taken the bracketry for the ignition shielding off the engine to get to the coolant sender on the back of the driver's side head...Is it 3/8"? If not, any other ideas where I could install this sensor? Thanks, Tim Link to comment Share on other sites More sharing options...
brad Posted March 22, 2022 Report Share Posted March 22, 2022 I drilled and tapped a spot on the water manifold. There is a bleed petcock that I removed and placed it there. Link to comment Share on other sites More sharing options...
Tim G Posted March 23, 2022 Author Report Share Posted March 23, 2022 Brad - That's a nice clean place to put it, and accessible too. Thanks for the idea! Link to comment Share on other sites More sharing options...
Tim G Posted March 23, 2022 Author Report Share Posted March 23, 2022 Does anyone know if the right head also has a threaded port for a sending unit that I could use to add the temp sensor for the EFI? Link to comment Share on other sites More sharing options...
brad Posted March 23, 2022 Report Share Posted March 23, 2022 The stock sending unit is mounted to a plate that bolts to the head. There is a blank plate on the passenger side. There is no reason whatsoever that you couldn't put one on the passenger side also. Link to comment Share on other sites More sharing options...
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