We have used speartech for the last 4 harness.Not 1 probelm w/any.AWESOME customer service. Super fast service.And he always anserws the phone or returns your calls.Nobody else to use but speartech.

Extra, Extra....Read all about it!!! SPEARTECH wins by a landslide!!!!:cheering: Speartech did my harness for my 6.0 in my Chevelle and it is great. Also ordered my brand new computer thru him as well.

Well he dont answer emails but he might be busy. I emailed him about a harness and computer about a month ago and still havnt heard anything. Guess i need to call him.

SpearTech did the harness for the LS2 in the 55 Post I'm building for a buddy -- wired right up - and fired right up... not a single issue or complaint. Got to love that!
:hail:

Speartech all the way!!! John was so easy to work with. He did the harness for the LS in my 92 Z28. I had the motor running the day I got the harness back.

Speartech did my 78z LS1 harness and PCM reprogram in 2006. Everything is flawless. I even called him a few years AFTER ....like this Spring when I was putting in an AAW Hwy 22 wiring harness and he still helped me. So he's GREAT for support and quality.

I am possibly doing another retrofit and might consider doing the mods myself this time not just to save the money, but to gain the experience. :) However, if I fail, I'll be calling Speartech to do it.

I used a Speartech harness for my LT1/4L60e and I'm pretty certain I'll use them again for my LS1/T56 swap. :thumbsup: