I know that this question has been probably asked 100 times so I apologize in advance. I was looking at a drop out LSx engine on EBay that come complete with PCM, Harnesses, Accessories, Intake Box & Tubing. I own a 1994 LT1 Caprice Classic with only 9k original miles. This car has the 4L60E trans, 8.5 Posi differential, dual exhaust etc. I would like to install a Corvette 6.0 Z06 LSx engine into this Caprice to make it a sleeper. I found the required B Body swap kit and I will mate this 6.0 to the 4L60E. Is there a plug & play harness I can purchase that will integrate the LSx harness to the Caprice so everything works as required (I don't care how much it cost)? I have mechanical abilities but not the greatest with electrical. Thank you.

 

Check with current performance wiring. I used their harness on my 2000 GMC jimmy. The trans should be usable. The harness was about $800-900

 

Thank you, I'll check it out!

 

I've had nothing but good luck with Speartech

www.speartech.com ask for John