Well i just bought the motor and i was wondering if any pcm will fit? its a 03 or does it have to be a pcm from an 03? also will stock wiring be good? or i need a specific wire.
Well i just bought the motor and i was wondering if any pcm will fit? its a 03 or does it have to be a pcm from an 03? also will stock wiring be good? or i need a specific wire.
What did the motor come from?
What type of motor is it?
What is it going into?
5.3L '86 Silverado (E/T: 14.37s @ 94mph) - First Time Out!Test-n-Tune (Nov 23, 2008) - 13.65s @ 98mph
It came from a 2003 RCSB Silverado
Its a 4.8L
Its going into my 90 RCSB GMC
Im also adding a mild cam and a blower
i have pulleys,and the bracket for the altenator. what else will i need?
I'm using a 02 PCM with my 03 engine so there is some interchangeability. Check the Painless Wiring web site for their compatibility chart, it'll give you a good idea of the differences through the model years, although (and you'll hear this a lot) it's easier for simplicity to get everything with the engine. You can not use your 90 computer with the new engine.
You also asked whether the stock wiring will be good. If you are referring to the engine harness, no, your 90 harness will not work with the new engine. You'll need to either modify a stock Gen III harness to interface with your trucks wiring or you could purchase a new swap harness form one of the many vendors (Nelson, site sponsor makes these)
Please read all the swap threads in this forum and the part number sticky to get an idea of what else you need, then ask for help with any specific questions that remain unanswered.
1965 C-10 shortbed stepside, 2003 5.3/4L60E conversion. Power steering, tilt wheel, power front disc brakes, 3.73 one wheel peel, 2.5/4 inch drop, relocated fuel tank and battery, 2002 Silverado buckets and console. Swap Pics
1968 Camaro 95LT1/4L60E lots o' mods Web Page
1961 Corvette project.......... C-4 suspension and brakes, 02 LS1/T-56 awaiting installation Pics
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