does a 4.2l swap need new computer?
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Old July 10th, 2008, 04:21 AM   #1
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does a 4.2l swap need new computer?


I have been wondering, if i did an engin swap to a 4.2 do i need to re tune my computer? I want to get a 4.2 short block and swap everything over if possible, Need advice!
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Old July 10th, 2008, 08:36 AM   #2
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if your just getting the short block no
i would just swap to a colder spark plug
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Old July 10th, 2008, 02:52 PM   #3
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if you have ported heads and a cam and so on like it says in you sig, then i would sure think you would need a new tune.
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Old July 11th, 2008, 01:02 AM   #4
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thank, i have a 4.2 at the shop just wasnt sure, bc i would hve to tralier the car to get tuned.
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