Question about 1993 GMC Sierra

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If i change from a v6 to a v8 on my 93 mc do i have to swap out the computer?

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No, they use the same computer. But the prom chips in the computer are different. It will run fine on the 4.3 chip but it will run better with the V8 chip. After you switch it, I would order a performance V8 chip for it.

Posted on Nov 11, 2010

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