Coolant Temp. Sensor is 3/8"x18 NPT
Oil Pressure Sensor is 1/8"x27 NPT
You will have to use the GM sensors for the ECM.

 

Ok, after talking with Novak, here's the plan.

Use this on the head to adapt for the temp sensor, it's a 3/8 female.

For oil pressure, I plan to use this adapter.

Now I don't have to drill or tap any new locations to retain stock gauges and the GM computer retains all stock sensors.

 

That will work, good luck with your build.

 

Except the stock gauges read digital input from Jeep pcm on the ccd twisted pair bus 97-2000 and pci single wire bus 2001-2006
So to use factory gauges you have to retain the TJ PCM
But with pcm not controlling engine the rpm gauge will not function


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Thanks, good point. I am planning to retain the TJ PCM, Novak did the rewire on the GM harness and I believe I have to connect a few wires to run to the Jeep PCM. One day I'll finish this and upload all my videos to Youtube.

 

Do you know if the donor suburban had an oil cooler? If not, there should be a block off plate on the driver side just above the oil pan towards the rear that can be drilled and tapped to accept the Jeep oil pressure sensor. That would save you a few dollars.

 

No, it didn't, it had the block off that does not have the port on it. I replaced that block off with a pre-threaded hole to install the sensor, I linked to it above.