Hi guys. So I'm prepping for a gen 3 to 4 swap in my 1999 RCSB 1500. I already got the valley cover to block off the oil feeds to the cylinder deactivation. My question is how are you guys installing the oil pressure sensor? I'm told the valley threads where the sensor mounts are different than the gen 3 sensors and I'm worried about the height of the sensor with interfering with the intake. I'm not sure how much, if any the sensor location changes from gen 3 to gen 4 (in relation to the rear of the intake). Can anyone shed some light on this?



 

I'm swapping gen 3 4.8 to gen 3 6.0, so not quite the same but I am relocating my oil pressure sender down to the driver side oil cooler plate with an ICT Billet piece.

 

I have thought about doing that but for the sake of simplicity I'd rather not mess with more wiring. I found out that the 98 f bodies have the same sensor so I'm sure there's a common solution.

 

The one wire sensor will fit without hitting the truck intakes with the gen 4 valley cover.

 

Cool. I kinda figured that was the case since I hadn't heard of any issues but thanks for confirming. Have you done the swap? Just need to figure out how to get the sensor to screw into the valley cover.

 

I was screwing around swapping another sensor into my '06 LQ4 (sensor started pegging out on fire up). Anyways, I had valley cover laying around from a Gen IV 6.0 I'm building. The Gen III sensor threads into the Gen IV valley cover. No issue.

Gen III sensor on the left

Threads all the way in by hand

 

Nice! Thanks, thats very helpful!!!

So assuming the threads are the same between the tall 1 wire sensor (like I have) and the 3 wire short (you have) then I should be good to go! No sure where my buddy got that they were different threads, but he's been wrong before (2 divorces...lol).

 

Yeah, I think you are good.

You've got the other Gen IV to III swap differences sorted out? The knock sensors need to be relocated to the sides, the cam needs that special sprocket (along with relocator harness for the front cam sensor). You'll also need that 58X to 24X converter due to the crankshaft reluctor wheel tooth count.

My engine will also go into a Gen III vehicle, so we are in a similar situation. I bought a Gen IV bare block and swapping Gen III crank though.

 

**** that converter box

 

What's wrong with that box? I just assumed that's what everyone was doing? 🤔

Another option is to swap the reluctor wheel itself. Take it to a machine shop. Last I asked it was like $100. Or buy that Goodson tool $275 + 24x reluctor wheel and do it yourself? But now you are taking apart an otherwise good bottom end.