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Originally Posted by J.S.
I got a 92 cutlass with a 3.1 motor and wanted to get a 3.4, but the 3.4 doesn't come with a tranny and I want to use the one form the 3.1. Is this possible? also has anyone had a problem swapping the two engines as far as compartment space. any help appreciated. T.I.A.
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Same basic engine but the electronics are different, you would need the pcm and harness to operate the engine but then the trans electronics are incompatible. If you used the long block only, swapped over your intake and all accessories, including the sensors it should work, what year 3.4? BTW, welcome to AF.