I need help and advice. I am installing a 2020 LT4 from a ZL1, plus the 8 speed auto trans, into a 2020 Pontiac TA.
This is number 1 on my bucket list. I have cancer and limited time, and its something I REALLY want to complete with my youngest son before I die.
What kind of wiring harness and ECU do you recommend for this swap? Who is the best vendor for this harness?