Does anyone know if there are extra threaded ports in the water jacket (block, heads, or intake) on the 2.8 that would fit a sensor? And if so, whereabouts? It is an 85 MPFI.

thanks.

 

depends on what size?

Both heads have one.
intake has 2-3??
Block of a 3.4 has two on pass side. I think 1-2 on drivers side.

 

So these ones you mention are extra, or are some already used? How many on a stock 2.8 do you figure are unused?

I think the sensor has 3/8" NPT threads. Do you happen to know if this would fit in these spare ones?

 

Are you rigging up an auxillery/ second fan relay to run dual fans? If so, thats were the sensors go in any of those Dale mentioned. The ports are pretty much always NPT threads and you can adapt up or down in size to get the sensor to fit.

 

cool. Yes that is the sort of thing I was thinking.

 

some of the ones I mentioned are already used. Some arnt. But them are the locations so you can start searching.

 

thanks Dale....a searching I will go!

 

If the holes are pluged you may need a special tool to get the plug out! WE had a hard time getting them out of a set of LT1 heads...had to track down a Snap on Truck to get the tool!

 

What kind of head do they have?? Is it some crazy type of socket or is it maybe square like on a differential?

 

It was square, but it would not take a 1/4, 3/8, or 1/2 drive end like some will. Sucked had to drive around and saw the Snap on guy going the other way and followed him till he pulled into a dealer! Guy said people do that all the time!