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So I am wanting to swap my 5.7 TBI & 700R4 with a 5.3 & 4L60E. I am going to be making the swap in a 1990 K1500 short bed regular cab pickup. I am looking for any advice from anyone that has done this swap or a similar one to help the process go as smooth as possible.
I'm in the middle of almost the exact same swap, except it is a 1990 C-1500. Welcome to the site.
Thanks...Yeah I think I have a lot of the issues worked out, but right now the biggest question I have is what to do about the A/C compressor, any ideas?
there is a way to keep your stock AC...it puts it on top of the motor without having to change the compressors
Basically you have a few options..
http://www.ls1truck.com/forums/lsx-t...-solution.html
or
Whats up with the AC, hope you have the answers - LS1TECH
or
Kwik Performance, Inc. products - LS1 and big block Chevy
or
S&P's ~$700 kit
or
There is a guy on pt.net that makes a high mount kit and sells it for $315. IMO I think it is the best option because it bolts right on with no modifications, it looks real good, and you use your own compressor. I have a link to it that I will l post tonight when I get on my own computer. (I'm on my phone)
some advice. Get a complete pull out. all those little bolts and crap will break the bank.
I am in the planning stage of basically the same swap but a 2wd. The only part Im not sure on is the wiring.
I have a set of those AC brackets ordered right now.
I have a link for someone if you need it. He has good feed back. But i am about to have he outfit a wiring harness for me. He can delete anything you are not going to run like rear 02, EGR etc.. and also have a link for someone that can reprogram the computer to run with out what you have deleted. just hit me up if you need the info. positive feed back on both people and prices are good.
The ones from pt.net? If so, please give full report on them. Im curious on how they are.Quote:
Originally Posted by DRAGGIN95
Please share what you know....Quote:
Originally Posted by 87OldYeller
If the guy's name is Oscar, save your time and money.
i have Josh Powers' adapter plates, they are well worth the money IMO. Im ordering his AC bracket asap, i hadda get my wiring harness out the way
Nelson performance made my harness. GREAT quality. and they build to your specs. Nelson Performance - Performance without Sacrificing DrivabilityQuote:
Originally Posted by flattopwill
Yes it's the ac bracket's from Josh Powers coming, as soon as I get them I will post up some pics.
sure the guy that did the harness TODD his email is stmccullough@yahoo.com he is located in Arkansas
the guy that did my computer lt1swap.com his name is brendan his email is lt1swap@centurytel.net
A Nelson harness is in the plans but man I'm so lost when it comes to wiring I won't know what to do with it when I get it. I don't know what stays and what gets ripped out nor do I know how to mesh it with what stays.Quote:
Originally Posted by ff_jeff
What part of Arkansas? It just so happens I'm in AR too.Quote:
Originally Posted by 87OldYeller
I am in central Arkansas too.
its easy. Only need to make like 5 connections. Battery, ignition, fuel pump, tach. and speedo. the rest is plug and play. :chevy:Quote:
Originally Posted by flattopwill
Have you done it? Is there really a wire in the harness for the speedo? I have a 91 with a 700r4 so I thought it would be more trucky than that. What about the body harness like headlights and turn signals and stuff? Is it easy to seperate the TBI harness from this stuff?
Mine isnt done yet. But I have the harness from Nelson. The body harness is different. It stays. The harness you buy from nelson will have the vss for the transmission. The new harness will replace the old one. Ill get you a pic of mine.Quote:
Originally Posted by flattopwill
http://www.ls1truck.com/upload/files/393/harness.JPG
Pretty strait forward. everything is labeled were it needs to either plug in, or splice ect.
Thanks for all the information and feed back. I do have someone to help with the wiring, and as far as computer work I am using Herron Performance.
That sounds pretty sweet. Thanks for layin it out for me. Now is it hard to seperate the tbi engine harness from the body harness? I thought they might be loomed together or intertwined somehow.
Actually i am not sure. I reposted that from a member that sent it to me i talked to him on the phone and seen the work. Looks clean. But he takes out what you do not need and relabels every wire. so there is not and confusion on where it goes.
The cheap guys are very tempting but considering how terrible I am at wiring I will probably go with Nelson to ensure quality.Quote:
Originally Posted by 87OldYeller
good idea. he also tunes.Quote:
Originally Posted by flattopwill
Ya and hopefully Nelson will offer some tech support for my dumbass lol.Quote:
Originally Posted by ff_jeff