Anybody know what size they are? I lost mine like a bonehead, so now I need to buy more.
Thanks, Gas.

 

Water neck? Do you mean water pump? I'm confused what you're talking about.

 

M6 x 1 x 25 assuming you mean the water pump inlet. GM PART # 22539278

Remember that they only take 89 lb. in. of torque.

 

Thanks, guys.
Right, it's the part that bolts on top of the water pump and holds the thermostat in place.
Can I find these any place other than the dealership? I asked the guy at the parts store, and he said they didn't carry them.

 

Whether you can find them depends on what places are available to you. It's not going to be a real common bolt.

 

Thanks, shoebox. I found them at Lowes. 4 for 92 cents. Unbelievable. Now for the next problem. I've got it all together, and I'm trying to put water in it. It pours out of a hole in the front of the new pump. I'm assuming there was a plug in the old one I should have removed.
So now the "what size" question gets moved on to this mystery hole on the front of the pump. It's on my right, facing the pump.

 

the temp sensor hole?

 

There should not be any hole in the pump.

Maybe where the temp sensor goes?


http://shbox.com/1/lt1_water_pumps.jpg

 

Ummm, yeeaaahhh, that's the one. Next question. Does anyone know where the paper bag went? You know, the one that goes over my head. Anybody seen it? I'm gonna be needing that.

 

i thought it was a plastic bag ! i have it for you!!

 

No, I already know where that one is. I gave it to the kids.