hmmm .. just to give you some background infos how everything started 1 year ago:
last year i figured out i want a gm swap after finding out that magnums are only straightforward with older TJs because of dash bus and evap incompatibilities with newer TJs. Hemis would be plug and play with 05/06 TJs but here in the UAE a expensive and painful odyssey.
so in october i could make a good deal on a ls1 donor ... and started digging all information (plenty on pirate!) regarding 5.3 swaps (equivalent!).
Decided to go with ONE swap specialist to collect the conversion parts ... and Novaks website is generously informative and Ryan was great to deal with ... so I decided Novak it will be.
Tranny to TC adapter, mount/isolator, radiator/fan/shroud combo, headers, accessory relocation brackets (KWIK), engine mounts (not used in the end bc of strict frame no mod regulations here), Lokar cable operated transmission shifter, cable operated TC shifter, tach emulator box to run the last missing gauge through the retained jeep pcm and some intake tubing all ordered from Ryan.
used the elapsing time to figure out i need a fresh new standalone harness instead of modding my old dusty and dry donor harness ... so i ordered from speartech.
then until everything paid and arrived i figured out what exhaust and how i will run it ... and ordered some parts from summit including radiator hoses, clamps, bungs and fittings, Lokar shift indicator/switch kit ... plus a superior D44 bolt on truss to reduce axle tubing flex due to torque ... will save my diffs for a while i figured.
chromoly shafts front and rear and truetracs full carrier lsds plus inner sleeves for my front D30 were already in since my regear early last year.
then ... 3 weeks ago the build has started ... 4.0 I6L plus 42RLE already sold for 1700 USD ... remaining donor body sold for USD 500 ... so LS1, 4L60E and GM ECU plus all accessories and sensors cost USD 800
(complete donor was just USD 3000)
in total including labor I will have 6.5 k into the LS1 swap excluding the drivetrain mods to come.
regarding the donor pcm:
you need to reflash donor pcm for
- disabling VATS (security)
- disabling rear O2s
- gear/tire size adjustments
- eventually shifting behaviour/torque management
- eventually egr delete
- eventually evap delete
- eventually manual gear tune
the first two are the most important to get thr engine running!
the rest is to get it driveable
actually with HPtuner or EFIlive a matter of minutes ... or you can get the service done for you ... wayne hartwig at pirate4x4 offers pretuned pcms for cheap or a reflash service for yours ... but his tunes kick axx power wise as well.
( you need a built tranny and a bit more than a D44 in the rear to run his top tunes
I got HPTuner and did the essential stuff myself... and will run stockish power and shifting with my beefed up D44 and still LP D30.
sorry for the long post ... only to illustrate that a slow approach is helpful to reduce down/build time of the TJ