1998 monte carlo ls 3.1 to a 3.8 supercharged

Asked by paulsmobile Mar 25, 2019 at 08:09 PM about the 1998 Pontiac Grand Prix 2 Dr GT Coupe

Question type: Car Customization

i want to take my 3.1 out and put a 3.8 supercharged in it, i realize it would be
alot of work but in the end the car would be a blast!!! im a mechanic so thats
not a issue, i have the motor trans wiring pcm just wondering how hard its going
to be to change the subframe any suggestions????

1 Answer
110

That answered 5 years ago

That should actually be a direct bolt in swap, tbh. Get the right ECM and engine harness, find the torque converter you want (I think the 9.6" ones are 2100 rpm) and bolt it up.

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