Nope, not yet. I'll save that for another thread unless you would like to give me some advice :)

I used my oil pressure sensor that came on my engine (the salvage yard broke it). I then cleaned the rest of the plastic stuff off and drilled and tapped it for 1/8" npt. (which usually come with your gauge) I'll take a pic here in a few and post it up.

S&p
 

I am pretty sure if you get the one that 71ANTICARB is talking about it is for a electrical sending unit and it will not allow that bulbous sending unit from the mechanical gauge fit, the 2 fittings on the left is a 1/2 and 3/8 adaptor either one of those will fit into the S&P adaptor that I am talking about. I would go with the 1/2 as I said it is not the cleanest installation as it is big due to the mechanical sending unit, I eventually spent a little more and got the more expensive electrical water temp gauge as it is a cleaner installation and works with the adaptor that 71ANTICARB is talking about and it is alot easier to hide the sending unit wire versus that ugly mechanical sending unit cable thing.

They are the same fittings S&P is just way more expensive.

You Sure?
 

I don't think so the mechanical sending unit probe is at least 1.5-2.0 inches long it is not going to fit into that adaptor you are looking at, that one will work fine for a electrical gauge sending unit. The mechanical one is much bigger and will not let the probe fit through, I'm done good luck to the op on whatever he chooses.

Summit Racing Part Numbers
Water Temp Adapter ATM-2277 $9.45
Oil Pressure Adapter ATM-2268 $9.45
Hope this helps

These wont work on that guage.
Guess this wont helo

auto meter 2259 is the sending unit that has a smaller probe

Just drill and tap the head and get an adapter that goes from NPT to the thread that your sensor needs

Here is how i did it

Attachment 616721

That would be your best option as it will give you the most probe depth.

Here's the pics of the oil pressure adapter:
Attachment 616717
Attachment 616718
Attachment 616719
Attachment 616720

My sending unit that I pictured is 5/8 - 18. The two adapters I pictured are 3/8 and 1/2 npt. So i'll wait till the adapters I ordered come in and see how it works. Worst comes to worst i'll splice my upper radiator hose with the 5/8 - 18 thread. Although I really would rather read the temp from the head.

*Al from Tool Time voice*

"I don't think so, Tim"

https://lh3.googleusercontent.com/_v...2/IMAG0063.jpg

Which fitting is that.

3/8 npt that came with the gauge, and the 12mm - 3/8 that I ordered from discount hydraulic hose

Mr. Camino what size fitting is that.

Damn did you order the one from S&P too. I can't imagine that it would be any better. Well guess I will definitely be drilling and tapping now.

Nope didn't order it. But they advertise its longer to accommodate the huge sensor. Although I can't see much benefit if the sensor doesn't fit through the 12mm adapter.

Ive been doing some wiring harness research and I'm going to try electric gauges for now. I'll tap the head when I rebuild the motor in a few years.

Hmmm
 

Hate to say I told you so, but for a mechanical gauge you either have to drill and tap or you have to use the S&P adaptor but like I said the downside is the sending unit pretty much sits inside the adaptor and not in the head, but I have verified actual temps vs. HP Tuner temps and they are within 1-2 degrees. Either way a electrical gauge is a cleaner set-up

Ok I'll give ya that one. I still don't see how the S&P one would be any different. Do you have a pic of it.
Here I just made this thread:
https://ls1tech.com/forums/conversio...l#post14906867

Best Method
 

Your method by tapping is probably the best solution, just one tip if you put some heavy grease on the drill bit and the tap you will catch most of the shavings as well, I also like your idea of the compressed air, using both would probably catch almost all of the shavings without having to remove the head and buy new head bolts and a head gasket. I snapped some pictures and will try and post them I dont have a photobucket account yet, it is one of those things I have been meaning to do. I also sent you a pm so I can get your email and send them to you and if you would post them that would be great.