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LS1 Engine questions

Old Oct 25, 2009 | 12:40 PM
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Hey guys,

Not sure where this thread belongs but if a mod wants to move it to the right spot go for it

I am currently doing a 5.3 Truck engine swap with the LS1 intake into my 84 corvette and am having trouble with the type of engine harness and ECM to get. I am electrically inclined to do the splicing and to figure out where wires need to go and all of that stuff but I am not sure which harness to get. Should I get a truck harness and splice in the pigtails for the injectors and what ever else needs to get spliced in or should I get an LS1 harness from a camaro/firebird or get a Corvette LS1 harness and modify it so its set up for a cabled throttle body?

And ECM. I need one to get flashed, correct? And I also heard I have to turn off some of the stuff on the ECM. What stuff do I need to turn off and how?

Also I heard that some years are weird, like the 98 camaros. Why is that?

Any help will be greatly appreciated
Thanks
Cory
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Old Oct 25, 2009 | 03:18 PM
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When hot rodders swap in LS1s they get the ECM appropriate for the engine and send it to a company who turns off all the stuff they don't need or want. I would think something similar would work for your swap.
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Old Oct 25, 2009 | 04:41 PM
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which companies will do that?
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Old Oct 26, 2009 | 01:00 AM
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Originally Posted by eilax053
which companies will do that?
PM sent.
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