Since my motor is a 2015 and the L83 L86 harness is pretty much identical, I used the L83 LT1swap.com guide to modify my harness myself. Great guide with lots of pictures. It took about an entire day but saved me around $600. I used a current performance ls fuse block which ran around $150.
Last edited by Blackdog76; 07-04-2021 at 08:54 AM.
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