Ls mechanical guage questions

[Ta2edjr]

I know there is a couple threads on this but most are very unclear in my opinion. I have a couple questions and a couple solutions. Let me know what ya think.

First off coolant temp sensor.
There is many ways this can be done....
Here's what I think may be the easiest of all..no drilling or tapping the cyl head for a bigger sensor and not using 3 fitting screwed together to get your mechanical sensor to work... here's my theory. My stock sbc coolant temp sensor has one wire going from it to my guage. The Ls coolant temp sensor has a couple wires going from it to the ecm...is it possible to to Tee into one of those wires and take it straight from the harness to your temp guage?. Because if this can be done than this truly is the easiest way.

Oil pressure sending unit.
You can unthread this from the engine and put a fitting in its place and then run your oil line from it to your guage. My question for this is does doing away with the electronic oil pressure sender have any effect on the ecm? I've seen where people make a fitting where they have a oil feed line and electronic oil pressure sender all in one..

These are my questions and concerns any and all help is appreciated. Thanks