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tapping block knock sensor

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Old Apr 18, 2011 | 09:58 PM
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Default tapping block knock sensor

I personally have never tapped anything thing on a engine. So i need to need to tap my block on my lsx block for ls1 style sensors since i am running a ls1 wiring harness. Is it hard tapping the block or should i have someone professionally install it for me? The lsx block has m8 theads and the ls1 has m10 threads. Can i use any kind of an adapter instead of tapping the block or is there a ls1 sensor with a m8 style thread?
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Old Apr 18, 2011 | 10:25 PM
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just drill it and tap it
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Old Apr 18, 2011 | 11:12 PM
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well i know the other option is using the motor mount holes. Could i use on of the motor mount holes where my motor bracket is? So it would just be like a 4th bolt ?
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Old Apr 19, 2011 | 06:56 PM
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Originally Posted by bryan23
well i know the other option is using the motor mount holes. Could i use on of the motor mount holes where my motor bracket is? So it would just be like a 4th bolt ?
come again? use the knock sensor as a 4th bolt? Just drill and tap the block. It's not hard.
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Old Apr 19, 2011 | 08:57 PM
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Figured it out, ended up not tapping the block too!
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Old Apr 19, 2011 | 09:03 PM
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how'd you do that?
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Old Apr 19, 2011 | 09:12 PM
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Talked to my tuner first but, i put one knock sensor on the rear engine mount hole, and the other in the front side mount hole. Appears that on the lsx block you can mount your knock sensor towards the front of the block or the rear of the block. i know what i am saying sounds confusing. i will take pics of my car in the air monday, when it goes to the exhaust shop. Just finishing my engine swap.
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Old Apr 19, 2011 | 09:14 PM
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cool, interested in the pics.
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Old May 2, 2011 | 05:44 PM
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any pics on how you did it yet?
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Old May 2, 2011 | 08:23 PM
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not yet, car is at the dyno shop..
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Old May 3, 2011 | 12:47 AM
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just tapped my block, nothing to it man.
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Old May 5, 2011 | 02:30 PM
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No need to tap the block. I had like 5 bolt holes to choose from on the passenger side because I'm not running AC, and 2 on the driver side. Screwed them both right in.
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Old May 6, 2011 | 03:37 AM
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ya i forgot to mention i am not running a/c so ya same as runner like 5 different bolt holes to choose from.
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Old May 11, 2011 | 11:54 AM
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Originally Posted by TransWS6Am
come again? use the knock sensor as a 4th bolt? Just drill and tap the block. It's not hard.
haha, that made me laugh.


Originally Posted by Johnny-LT1-runner
No need to tap the block. I had like 5 bolt holes to choose from on the passenger side because I'm not running AC, and 2 on the driver side. Screwed them both right in.
I had a hard time finding holes. My Kooks 2" made all but 1 M10 a no go...

but like said above... i just drilled one a bit bigger and I was good to go. no big deal.

jk. it was a big deal to me. I was a scaredy cat. That was an expensive motor.
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