hi there. I just got a great deal on a 6.0L truck motor from a 02 sierra pickup and I wanted to know what mounts do I need to install this into my 92 Z28. I previously had an LT1 project for it but the project was costing to much for an antique motor so i bought this 6.0L cause I read that they are compatible with the LS2 heads...also I didnt get a wiring harness so will any LS series motor harness work and the pcm.....any help

 

Ah come on, they are not that old of a motor style. However since you are talking about costs it might be a good idea to do a search on all the pieces and parts you will need to put that motor in a third gen. From what I read here truck motors are used a lot for LSX swaps but they require additional components that really add up quick if you are not aware before hand.

 

the most common mounts used for the f-bodies seems to be the spohn mounts. But remember that you'll have to grab a 4th gen fbody oil pan; that truck one will be wayyy too low.

Harness-wise, this can get interesting. you can make your own, i also know Pocket's got one for sale in the classified section (was eying it myself, but gonna try to make mod my own). you can get creative, but there are a few write-ups from him on the very subject

 

This should help some https://www.thirdgen.org/forums/ltx-...otor-into.html

 

Two main types commonly found right now. SBC adapter plates reuse the stock V8 k-member mounts and V8 engine side mounts bolted to the adapter plate. Aftermarket mounts attach in the V6 position of the k-member and reuse the stock LS1 Fbody engine mounts

The SBC adapter plates are not compatible with 4th gen AC retrofits. If you are not reusing the 4th gen location AC, or are moving the compressor anywhere else, these will work fine and are generally a significant amount cheaper

Most people go with 6.0L engines for the 4.00" bores so they can swap any of the later large valve heads on instead of dropping a good bit on aftermarkets for the smaller bores. L92 heads are a more common upgrade in that respect, beware the intake changed between the head types and it usually led to requiring a different TB

Just about any will work. The newer harnesses are often 58x. Your 6.0L is 24x. Avoid the 98 PCMs, those require special... everything to be used. 98 harnesses can be modified to fit the 99-04 PCMs though

 

hey pocket thanks man you always come through. i hear you may have a harness for sale, would it be one that will work for me? how much? also do you reprogram ecu/pcm or have one for ls series motors. as for the adapter plates where can those be found and does anyone recommend a certain way. also what trannys are usefull cause i didnt get one of those.

 

what makes up an lsx swap?

 

They've become very cheap in the last few months. A quick search on ebay yielded this. Who makes them really doesnt matter, its a simple plate with holes drilled in it
http://cgi.ebay.com/ebaymotors/LS1-C...item414cb0b2e1

Standard location works best with 3rd gens. You can get forward/back adapters if this doesnt fit the bill, or you do it for a different vehicle

Tannys are up to you. Street cars work VERY well with any of the electronic transmissions, 4L60E, 4L65E, 6L80E etc. Older transmissions can be adapted very easily with the crank hub kit ($50ish). For an EFI swap, 700R4/4L60/200R4 are not the best choices because multiple additions must be made for things like TV cable mount, VSS compatibility etc. If going carb those work fine, with a beefy rebuild of course

Ill send a PM in a few minutes about the harness

Any GEN III/IV engine. Thats 4.8, 5.3, 5.7, 6.0, 6.2, 7.0 etc. While they carry many names, they all fall into the V8 LS engine family

 

I highly recommend getting a harness from Pocket if you're not comfortable with doing the wiring yourself. I used one of his harnesses in my own swap and it works flawlessly.

 

go to www.hotrodlane.cc they have done it all.
I just finished 03' 6.0 SS swap into a 97' Chevy Tahoe sent my ecm to them to remove V A T S and emissions used my orig. 4l60e with a 05' program there are quite a few things that are sneaky, like flexplate, flexplate spacer, and flexplate bolts, dont forget the fuel, ac is climate control (runs all time) motor plates,etc.
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