Im kinda lost on where the sensors go on my ls2, they are 2 different screw in type covers in different spots on the block, i just wanna make sure thats where they go. Pics would much appreciated.

thanx
bobby

 

i think in the side of the block https://ls1tech.com/forums/attachmen...id=56378&stc=1

 

This is where they are on a factory crate LS2.
If you want to screw LS1 sensors into an LS2 you can open the threads out from M8 to M10 easily. They are blind female threaded bosses both sides with lots of meat.

You can also use any of the un-used engine mounting bracket holes...these are already the correct thread to take LS1 sensors. Dummy fit your headers and see which location suits best.

 

what bout the bigger hole there on the bottom of the pics and what bout the driver side? Iono, i am kinda confused cause there is no plug in the screw hole type on the driver side and u can see inside the engine.

thanx
Bobby

 

Anyone else

 

The big threaded hole that goes into the water jacket is where the block heater goes, like this (don't mind the motor plate or dry sump, just look at the brass thing):



Usaully there is just a big plug with a giant allen head in it; that's how it is on my LS7. The above pic is right on about the knocks, and there is a similar boss on the other side of the block.

 

well ill take a pics of the one im talking about, i have the two allen head screw type but there is something else, ill post up later this evening.

 

here are some pics of the hole i was talking about. Its on the passenger side

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That is where the crankshaft position sensor goes. If you've got the 24 tooth (pre-MY2006) reluctor wheel you'll need the black sensor.

 

how do u know which one, its in a 98 model

 

Anyone????

 

98 has a 24 tooth. Unless it's a GM crate motor, I highly doubt it has the new wheel. You should just be able to use the one that's on your car.

 

i really do appreciate the help

 

Kounsy, your car looks awesome in that sig picture.

WHo did you end up getting your LS2 shortblock from?

 

i got it from sdpc. Im just running alil low on cash cause i got laid off from work but im ordering the parts to put it in the car this week, i just have to drill (i guess) for the knock sensors

 

And with ls1 knock sensors you will need to drill out the hole and retap them. They are a bigger thread.

 

ya i know, but do u know what size it would be?

 

Use the back motor mount holes. They don't they dont have to be taped (it screws right in). I put one on each side in the rear. The wire is close to the header but there is atleast a half inch. I brought my wire back towards the sensor after I plugged it in and zip tied it to the sensor. Then I routed it nicely down and around the back away from the headers. It's alot easier than taping that bottom hole. Also, I don't think the that SPDC extension is long enough to reach the bottom hole without ha ving to splice in more cable.

 

Well that would most def sux, i really dont want to splice the wires

 

does anyone have the wiring harness that is long enough