Engine swap

Asked by Aug 18, 2017 at 09:46 AM about the 1998 Pontiac Grand Prix 2 Dr GT Coupe

Question type: Maintenance & Repair

I have a 1998 Pontiac Grand Prix gt coupe
but recently I found a 1997 Pontiac Grand
Prix gtp (supercharged engine) that I would
like to put into my 98 gt what work would
need to be done to make it fit or would I
just be able to lower and mount it in no

1 Answer


Both are 3.8L, and should swap easily in mounts. 98 was the year they switched from 60E to 65E transmission, you may want to swap both as a combo (not sure if you can reflash your 98's computer to work with the 97) in fact I'd swap over the the computer too, and compare the harnesses for differences, exp. regarding sensors and sending units.

Your Answer:

Pontiac Grand Prix Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Ford Mustang
34 Great Deals out of 1,238 listings starting at $4,685
Used Pontiac Grand Am
19 listings
Used Chevrolet Camaro
11 Great Deals out of 922 listings starting at $11,500
Used Chevrolet Malibu
32 Great Deals out of 1,807 listings starting at $2,950
Used Pontiac Firebird
26 listings starting at $15,900
Used Buick Regal
135 listings starting at $6,988

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.