The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - $2k for 6L LQ9 and 4L80 w/ harness, no ECU?

foamypirate · 02-21-2016, 11:26 PM

2K for an LQ9 with a 4L80E is pretty reasonable. I paid $1500 for just the LQ9 (though it did have all accessories, ECM, harness, etc). You can use a factory ECM, it will just need a segment swap done to run the 4L80E (and you will need to repin some of the harness if you are doing it yourself. Otherwise, let your harness builder know you are running a 4L80E).

I am doing the exact same setup in my 88' R20 Crewcab with a factory ECM with the segment swap. Should be firing it up for the first time here in a week or so.

02-21-2016, 11:26 PM	#5
foamypirate Registered User Join Date: Apr 2009 Location: Pflugerville, TX Posts: 594	Re: $2k for 6L LQ9 and 4L80 w/ harness, no ECU? 2K for an LQ9 with a 4L80E is pretty reasonable. I paid $1500 for just the LQ9 (though it did have all accessories, ECM, harness, etc). You can use a factory ECM, it will just need a segment swap done to run the 4L80E (and you will need to repin some of the harness if you are doing it yourself. Otherwise, let your harness builder know you are running a 4L80E). I am doing the exact same setup in my 88' R20 Crewcab with a factory ECM with the segment swap. Should be firing it up for the first time here in a week or so.