When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have a 2010 6.0 truck Gen IV w/VVT (L96) and a T56 in my 71 A-body Cutlass. When I originally put this in in 2012, I had AKNovaman redo the stock harness and make this work. It has indeed worked well, but I don't like how ugly the stock harness is. I'm going to be swapping frames in my car this summer and I'd like to buy a new harness that would work with my E38 ECM, VVT, efans and T56 that would be cleaner and have the ECM mount on the firewall. Who can do this type of harness for me that has a good reputation? You can see the current wiring harness layout and ECM location in the pics, and you can also see the room I have where the old AC suitcase used to be. Appreciate any leads you can give me.
I have used Speartech and Howell with really good results. I get the harness and ECM with a base tune from one vendor. I like to mount the ECM, relay and fuse block inside under the dash. Try to hide as much of the harness as possible. I don't have AC so that cleans things up a bit. After looking at your pics many of the ECM harness wires could be hid if you can mount the ECM stuff under the dash.
Some of your stock Cutlass wiring could be modded and tucked inside the fenders. Rotate your mass air sensor to the underside. Same with the air hose in the 90 degree elbow. I really don't like the plastic split loom wire cover. I thing the braided wire cover is so much better looking.
Couple of pics of my latest hot rods. 68 C10 and 80 Camaro RS.
Your's looks great. Yes, I'm trying to up my game a bit on aesthetics. I'll contact one (or both) of your recco's. Bill Howell helped me with my first swap in my Cutlass in 1990; a harness to fit an '89 350 TPI/700R4!
I used BP Automotive for my wiring harness about 10 years age, I got the harness, ECM tuned and setup to run AC and mounting bracket. The only mistake I made was not having the wiring harness made so I could put the ECM in the trunk.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
Custom wiring harness from reputable vendor? 
