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My new LS2 crate & knock sensor location

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Old 10-21-2005, 12:46 PM
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Default My new LS2 crate & knock sensor location

I know that the new LS2 knock sensors are different, and I had read that they were located in the lifter valley and not the side of the block. I had also read that there were holes in the sides of the block that were plugged and could be used for LS1 sensors.

Well I got the thing un-crated and noticed that there are (what surely look to be) knock sensors moutned in the side of the block near the engine mount brackets.

I was wondering what the differences might be between an 05 and 06 engine, maybe this is one of them?
Old 10-22-2005, 03:48 PM
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The 05' knock sensors are indeed on the outside of the motor, as you say. I don't know about 06'. They are not compatible with LS1/LS6 knock sensors.
Old 10-22-2005, 04:39 PM
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what tuning needs to be for this swap, as far as the sensors go ? ( sorry for the hijack)
Old 10-22-2005, 04:47 PM
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05 LS2 pic




Handdrill + M10 Handtap + 5 min and you'll be screwing LS1 knock sensors into both sides......in the same location as the usual LS2 knock sensors.

Some people even manage to use existing spare M10 tapped holes somewhere there to screw the ls1 sensors straight into.
Old 10-23-2005, 06:32 PM
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I just tune them out. If you trust your fuel and tuning, why bother.

HSV-GTS-300: I wonder if the sensitivity is as good on the sides of the block as in the galley?? Glad you found a good solution, but wonder if the LS1 sensors work as well (or better) in that location?



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