treylittlefield

Its his sending unit for his fuel pressure gauge screwed into the bypass. If I'm not miataken, you have to have that relief cut out on the inside of the plug for it to work. If not you'd pretty much have a return less system?

But yes you could make that a exact plug without the threaded part for the sending unit.

5.3 GMC

So as long as I have it drilled out a little on the inside, so it's not just flat, I will be fine?

treylittlefield

Correct. Just have to make sure its drilled enough for adequate fuel flow for the regulator to do its job.

5.3 GMC

Well it's 5/8" wide and not quite 5/32" deep, not including what the tip of the bit itself will take out. I guess I'll give it a shot. I'm going to try to run my factory for a little while. Do you know what size gauge is that that screws into the front of the regulator by chance?

treylittlefield

If you talking about the sending unit that he threaded into the homemade block off plate, his is" 1/8"-27NPT" or that's what it says on it in one of his pics. Lol

5.3 GMC

I figured out what I was looking for. I realize my post was somewhat misleading. Thanks for your help. I also figured out lingenfelter makes one of those bypasses...

treylittlefield

Link?

5.3 GMC

I just typed ls fuel pressure regulator bypass in Google and went to searching. It had a picture of one at the top. Hovered over it and it said lingenfelter brand. I clicked on it and it was what it said it was. I'll try to post a link in a little bit

5.3 GMC

Try this and see if it works

LPE Fuel Pressure Regulator Plug Corvette LS1 LS6 LS2 LS3 LS7 03-13 - Lingenfelter Performance

5.3 GMC

Different one

LPE Fuel Pressure Regulator Plug Corvette LS1 LS6 LS2 LS3 LS7 03-13 - Lingenfelter Performance