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LS1 knock sensor height on LS2+ blocks

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Old Nov 13, 2013 | 07:11 PM
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Default LS1 knock sensor height on LS2+ blocks

Gents,

I hope you can help me. I am having a new LSx motor built but am worried that if i relocate the LS1 knock sensors to the side of the new block then I may have issues clearing my headers.

Does anyone know the height of the sensor and plug after the threaded portion? I just need to know the height that will protrude outwards from the block.

I am sure that this will be useful information to other too. Thanks in advance.
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Old Nov 13, 2013 | 10:13 PM
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anyone?
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Old Nov 14, 2013 | 06:26 AM
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An LS2 block?
There's all kinds of room between the bottom of the block and anything around it where the knock sensors install. I don't know how long\large an LS1 sensor is, but It should be a non-issue.
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Old Nov 14, 2013 | 11:01 PM
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Thanks for posting HwyStarJoe

its an LS3 block and there are about 7 holes on each sides of the block for the knock sensors but 4 of them are taken up by the motor mount and the rest have headers that hug the block so All i need is a height measurement...
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Old Nov 15, 2013 | 01:02 AM
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The actual spots them Sensors go in are on each side of the Block and are the only two that are M8x1.25mm Thread. They have to be tapped to M10x1.5mm to use the LS1 Sensor.
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Old Nov 17, 2013 | 09:48 AM
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Thanks for that info. I need the height of he sensor and plug though.
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Old Nov 17, 2013 | 10:19 AM
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I'd use 2" to be on the safe side
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Old Jan 20, 2014 | 11:57 AM
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thanks. Its about 2.5in in case anyone was wondering
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