Hey fellas.
So got out of the diesel game and looking to do a variant of the LS swap. Right now thinking either a LM7/LS3 depending on price into a Chevy Apache. But that could be some time off.
Some questions I have around different approaches/options -- basically around wiring/modules to link everythign together.
Appreciate some clarification or insight.
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Approach 1 - Full EFI harnessed Conversion (donor harness worked or aftermarket)
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LSx engine and full wiring harness (ECM/PCM) and DBW pedal and TCM. Painless aftermarket harness or Harness reworked and wired accordingly.
eg
painlessperformance.com/webcat/60524
or
painlessperformance.com/webcat/60221
or
ebay.com/itm/LS1-5-3L-6-0L-Engine-Wiring-Harness-and-PCM-Stand-Alone-Modification-/252448487636?hash=item3ac71a38d4:g:tMoAAOSwCypWmWS X&vxp=mtr
4l60E/4l65E engine with valve body work.
Essentially those are the main components required to make this work in a classic (accesories, fuel supply, gauges etc withstanding)
Between $300 and $900 in wiring/modules if you have the ECM/PCM and TCM etc from donor vehicle
Q1) Is there anything I am missing or not understanding here.
- - - Updated - - -
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Approach 2 - Full EFI aftermarket conversion (aftermarket harness/ECU/PCM/TCM)
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Same as above ........ but with regard to the harnesses you now run something like
fuelairspark.com/fas/gm-ls-ez-efi-2-0tm-self-tuning-engine-control-kithtml/ EFI and ignition control. approx $2k
or
superchevyperformance.com/19171130_LSX_Ignition_Controller_p/19171130.htm plus EZ EFI 2.0 EFI and ignition control) approx $2k
then
summitracing.com/parts/tci-302820 (transmission control) ~$600
So around $2500 additional to the engine/trans costs (then add accessories etc)
Q2) - Any advantage in going aftermarket here ??? Its pricier and then you have a bunch of compeonents working together. you would have support from that one company - but you know :)