The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-22-2011, 11:29 PM   #1
flamingbig10
6.0 powered square
 
flamingbig10's Avatar
 
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
lsx wiring harness

I about ready to get a harness for my 6.0 dbw and 4l80e using all the vortec parts, what I'm looking for is a harness long enough to mount the computer under the dash with a prewired fuse and relay block that require basic hook up, check engine light and ob2 connector, and I will also I will need a computer tune since I'm a running aftermarket cam,I have looked up on site but don't no which one choose
__________________
Aaron
1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot
Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326

Last edited by flamingbig10; 02-22-2011 at 11:34 PM.
flamingbig10 is offline   Reply With Quote
Old 02-23-2011, 12:08 AM   #2
skoffice
Registered User
 
skoffice's Avatar
 
Join Date: Apr 2007
Location: Elk Grove, CA
Posts: 375
Re: lsx wiring harness

I got a harness from Howell Performance for a buddy's truck. All I could say was WOW. The most impressive harness I have ever seen. They even send you a computer, with your cam specs dialed into it, all ready to run. Plug, it in and fire up. Everything you mentioned is there. We opted for their mesh loom and it looks super cool. I highly recommend these guys!
http://www.howellefi.com/customer/
__________________
1964 C10 Shortened Shortbed Cammed LQ9 P&P
1967 C10 Trophy Truck BB 438 (soon to be worked on again)
skoffice is offline   Reply With Quote
Old 02-23-2011, 12:22 AM   #3
DirtyLarry
Windy Corner of a Dirty Street
 
DirtyLarry's Avatar
 
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
Re: lsx wiring harness

X2 for Howell. Plus they can custom make trunk lengths to any specification you give them even if you want to hang the ECM off the rear bumper. The cam shouldn't be a big problem for them. Yes, a live tune is better if you are looking to shave off tenths of seconds for 1/4 mile times but for a driver....they can get you pretty much spot on with their base programming and let the MAF do the rest.
DirtyLarry is offline   Reply With Quote
Old 02-23-2011, 04:14 AM   #4
skoffice
Registered User
 
skoffice's Avatar
 
Join Date: Apr 2007
Location: Elk Grove, CA
Posts: 375
Re: lsx wiring harness

Yes, I think they will give you up to 5 feet extra to the computer for FREE. We went the 5 extra feet and in his C-10 we were able to get the computer mounted under his front seat. He made a little plate that holds the computer, relays for fans and fuel pump, and the fuse block. Pretty slick. These guys know their stuff too, excellent customer service.
__________________
1964 C10 Shortened Shortbed Cammed LQ9 P&P
1967 C10 Trophy Truck BB 438 (soon to be worked on again)
skoffice is offline   Reply With Quote
Old 02-23-2011, 04:10 PM   #5
Shon
Registered User
 
Join Date: Sep 2005
Location: sc
Posts: 1,203
Re: lsx wiring harness

www.currentperformance.com
__________________
71 Cheyenne C10 LWB cam'd 6.0/T56 Swap
Shon is offline   Reply With Quote
Old 02-23-2011, 05:25 PM   #6
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
Re: lsx wiring harness

http://www.lt1conversion.com/products.php

this is what I will use soon to replace the ugly stock harness.
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Old 02-23-2011, 09:35 PM   #7
BigShoe24
True Addiction
 
BigShoe24's Avatar
 
Join Date: Nov 2005
Location: FTL
Posts: 415
Re: lsx wiring harness

Anyone running one from Speartech?

http://www.speartech.com/
__________________
RCC
BigShoe24 is offline   Reply With Quote
Old 02-24-2011, 02:12 AM   #8
flamingbig10
6.0 powered square
 
flamingbig10's Avatar
 
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
Re: lsx wiring harness

those all look nice
__________________
Aaron
1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot
Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326
flamingbig10 is offline   Reply With Quote
Old 02-24-2011, 01:06 PM   #9
shrunken66stroker
Registered User
 
shrunken66stroker's Avatar
 
Join Date: Jan 2008
Location: Las Vegas, Nv
Posts: 954
Re: lsx wiring harness

What about this ebay harness for $500? Why the difference in price? It looks to be the same as what speartech or howell is offering for much less. What's the catch?

http://cgi.ebay.com/ebaymotors/ws/eB...#ht_940wt_1167

Last edited by shrunken66stroker; 02-24-2011 at 01:06 PM.
shrunken66stroker is offline   Reply With Quote
Old 02-24-2011, 01:36 PM   #10
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
Re: lsx wiring harness

if you have a OD trans on it, the price is about the same for those you mentioned.

The one I linked if $499.00 for a harness with trans wiring included. IDK, I am going with lt1conversion.com
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Old 02-24-2011, 01:41 PM   #11
shrunken66stroker
Registered User
 
shrunken66stroker's Avatar
 
Join Date: Jan 2008
Location: Las Vegas, Nv
Posts: 954
Re: lsx wiring harness

The ebay harness includes a PCM, vats turn off and a base tune per your cam specs. I've never seen any of these harnesses so I don't know if the difference in price is based on the quality of the wire/connectors used or what?
shrunken66stroker is offline   Reply With Quote
Old 02-24-2011, 03:24 PM   #12
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
Re: lsx wiring harness

I agree with you Shrunken, however if I am going to send $600.00 to someone, I think a rep company such as Speartech or current or lt1 would get my business, I have heard alot of great things about John at Speartech, also about the Nelsons at Nelson performance.

Also knowing what I know now, If I had to do the swap all over again, I would have saved my pennies and did the PCM tune and the custom harness instead of the cheap arse way I did it. ( stock harness converted and stock tune minus vats and rear o2's)
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Old 02-24-2011, 03:58 PM   #13
shrunken66stroker
Registered User
 
shrunken66stroker's Avatar
 
Join Date: Jan 2008
Location: Las Vegas, Nv
Posts: 954
Re: lsx wiring harness

Agreed. Nothing like a company with a good reputation and proven products. I'm starting from scratch so I think I'll call Speartech and ask a few questions. They will be able to point out the differences between their product and cheaper alternatives. Even if it's just customer service, the extra cost is worth it. I'll probably end up buying from them since I've heard nothing but good things about them from multiple sources.
shrunken66stroker is offline   Reply With Quote
Old 02-24-2011, 04:05 PM   #14
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
Re: lsx wiring harness

Speartech is a great group, I gotta give them that, also look into nelsonperformance.com
I have worked with them on my tune and it was a pleasure to work with Erica getting my tune done. the truck runs alot better, alot harder ( yea I know, 4.8?) and it gets 20+mpg hwy. well worth it on my side.
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Old 02-24-2011, 04:06 PM   #15
Kabwe
Certified Car Nut
 
Kabwe's Avatar
 
Join Date: Jan 2005
Location: Inglewood, California
Posts: 3,118
Re: lsx wiring harness

Quote:
Originally Posted by Clyde65 View Post
http://www.lt1conversion.com/products.php

this is what I will use soon to replace the ugly stock harness.
I bought mine from them its a nice harness. I had an issue (my fault) and they cleared it up right away good people to deal with. I have not installed it yet, but I did do the mock up and everything looks good.

Last edited by Kabwe; 02-24-2011 at 04:09 PM.
Kabwe is offline   Reply With Quote
Old 02-24-2011, 08:44 PM   #16
flamingbig10
6.0 powered square
 
flamingbig10's Avatar
 
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
Re: lsx wiring harness

I emailed Howell Performance,current performance, and lt1 conversion today, to see if I get any replies
__________________
Aaron
1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot
Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326
flamingbig10 is offline   Reply With Quote
Old 02-24-2011, 10:28 PM   #17
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: lsx wiring harness

I got mine from lt1conversion on tuesday after ordering it on friday. looks really good!
__________________
My build thread - '84 2wd w/ a 6.0 swap
http://67-72chevytrucks.com/vboard/s...d.php?t=433595
harnalien is offline   Reply With Quote
Old 02-25-2011, 12:09 AM   #18
flamingbig10
6.0 powered square
 
flamingbig10's Avatar
 
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
Re: lsx wiring harness

Quote:
Originally Posted by harnalien View Post
I got mine from lt1conversion on tuesday after ordering it on friday. looks really good!
that was fast do you have any pics
__________________
Aaron
1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot
Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326
flamingbig10 is offline   Reply With Quote
Old 02-25-2011, 12:28 AM   #19
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: lsx wiring harness

Here ya go, not the best, but hopefully it gives you an idea. It came nicely coiled in a box, but I was so interested in it, I had to pull it apart to look at it, lol. Looks like it will be very straightforward to hook up though.
Attached Images
  
__________________
My build thread - '84 2wd w/ a 6.0 swap
http://67-72chevytrucks.com/vboard/s...d.php?t=433595
harnalien is offline   Reply With Quote
Old 02-25-2011, 12:51 AM   #20
DirtyLarry
Windy Corner of a Dirty Street
 
DirtyLarry's Avatar
 
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
Re: lsx wiring harness

That is a good looking harness! Looks very high quality.
DirtyLarry is offline   Reply With Quote
Old 02-25-2011, 10:29 AM   #21
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
Re: lsx wiring harness

Harnalien,

Please let me know how that harness goes together, I am saving my $ to purchace one so I can get the PCM in the cab and also to really clean up the install.

Thanks

Oh BTW are you going to the FTW get together on the 12th?
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Old 02-25-2011, 12:30 PM   #22
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: lsx wiring harness

Thanks! I hope to start the swap by the middle of next month, maybe sooner, so I'll let you know. I didn't know about the get together. That sucks because I have to work that weekend.
Posted via Mobile Device
__________________
My build thread - '84 2wd w/ a 6.0 swap
http://67-72chevytrucks.com/vboard/s...d.php?t=433595
harnalien is offline   Reply With Quote
Old 02-25-2011, 01:17 PM   #23
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
Re: lsx wiring harness

come anyway, work can wait man!

it is at Locations Photography
2613 Weisenberger ST.
Ft Worth, TX. 76107
817.637.6972

1PM to 4PM.
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Old 03-20-2011, 11:17 PM   #24
flamingbig10
6.0 powered square
 
flamingbig10's Avatar
 
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
Re: lsx wiring harness

I ordered my harness from lt1 conversion and had the computer reprogrammed
__________________
Aaron
1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot
Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326

Last edited by flamingbig10; 03-20-2011 at 11:21 PM.
flamingbig10 is offline   Reply With Quote
Old 03-22-2011, 10:00 PM   #25
52 Rat
Registered User
 
52 Rat's Avatar
 
Join Date: Aug 2010
Location: Asheville, NC
Posts: 291
Re: lsx wiring harness

I purchased a stand alone harness from PSI. The quality and customer service is awesome. Jon will take the time to call you back and answer all of your questions. There is plenty of info. regarding this subject on
LS1tech.com
http://members.ebay.com/ws/eBayISAPI...=psiconversion
__________________
My build project http://67-72chevytrucks.com/vboard/s...=1#post4158671
52 Rat is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:18 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com