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LS3 W LS1 knock's and TSP 1-7/8 header clearance.

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Old 03-18-2014, 09:33 PM
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Default LS3 W LS1 knock's and TSP 1-7/8 header clearance.

LS3 about to go into my 01 TA with TSP 1-7/8 LT's. I am planning on drilling the block in the factory LS3 knock sensor locations to install the LS1 knock sensors.
Can someone who has done this on their own car verify the LS1 knock sensors will clear the headers and all other parts when located in the stock LS3 sensor locations.
Old 03-20-2014, 09:20 AM
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I have LS3 with TSP 1 7/8 headers and the factory LS1 knock sensors fit just fine. You need the extension harness as you probably already know but that is about it.
Old 03-20-2014, 05:15 PM
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Thank you very much I appreciate it I'll drill them tonight. I havent ordered the headers yet so I couldn't mock it up for fitment purposes.
Thanks again
Old 03-22-2014, 12:27 PM
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The only "problem" I had with mine was the driver side header was super close to the k member on the outside edge, so I just took an angle grinder and buzzed the edge down on the k member. Fits like a glove now.



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