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#1
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91 Lumina engine swap?
I have a 91 Lumina euro with a bad 3.1 motor and trans, I also have a 88 Cutlass Supreme with a rebuilt motor and trans. Is it possible to put the 2.8 motor and trans into the Lumina? If so what kind of problems can I expect to run into? Thanks.
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#2
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Re: 91 Lumina engine swap?
Well you have to look into all the things that are different about the drivetrain. Like if the cutty has the 3 speed and your lumina has the 4t60, etc. There is actually alot to look into.
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#3
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Re: 91 Lumina engine swap?
Best way to find info on that is from an auto salvage yard. They have the crossover books and will be able to tell you for sure.
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#4
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Re: 91 Lumina engine swap?
IF the transmissions are the same, it's a staight up swap. The only difference between the 88 2.8 and the 91 3.1 is the bore/stroke change that resulted in the increased displacement. Externally, they are identical.
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![]() Still waiting for the "good old days" I'll get to bore my future grandchildren with! |
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#5
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Re: 91 Lumina engine swap?
i'd honestly just stick and try to find another 3.1, the 2.8 in your lumina would be dog slow, but as far as reliability its good
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2000 Pontiac Grand Prix GT coupe -- mine 2003 Pontiac Grand Prix SE sedan -- Dad's 1984 Chevrolet Monte Carlo SS -- Toy 2003 Chevrolet Venture LS -- Mom's |
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