engine swap

Asked by Aug 27, 2011 at 10:11 AM about the 2006 Pontiac Grand Prix Base

Question type: Car Customization

I wanna do a engine swap. I found a 3800 SC(motor and tranny,pcm,harness,etc) easily a
complete motor.Came outta a 02 gtp. My question is...will it fit and how much difficulty,is
involved with the swap?

25 Answers


by the time you pay for that other motor and go through all the work and get all the kinks worked out it would be cheaper and faster to just buy a gtp.

3 of 3 people found this helpful.

thing is...the na/3800 I have in there ran hot and is no longer any good. So I have to replace the engine anyway. Figured I'd jus upgrade instead of going back original. I'm can get the 3800 Sc with tranny and pcm,for 2000. I'm jus wondering,will it drop strait in and bolt up? Whats the diff between gtp and base besides engine and exist?

2 of 2 people found this helpful.

engine and exaust


it will bolt straight up but u have to keep in mind the supercharger if ur grand prix wasnt set up for it u have to try and find the wiring harness with it built in and change the whole harness or go aftermarket sensor to monitor ur boost

1 of 1 people found this helpful.

what about the tranny? Is the base tranny the same? Thx

02 and a 06,sorry but no it wont work.

sorry again ,no the tranny will not work eather.you got a good idea going but nothing on a 02 will work on a 06.this info is from a guy that owns 3 T-Bird Super Coupes with the 3.8 supercharged engines.so trust me when I say it wont work.sorry.just enjoy your ride.

well,what if I went with an 06 sc3800? Computer and harness would be,all I needed? Just weighing my options. I have gt body and interior that's in A1 condition.But need a engine. Really want the sc3800

sorry not gT but Go

sorry not gT but Gp

1 of 1 people found this helpful.

sorry,but the sc engine & tranny will onley work in a sc car desigined for it.


Yes I put a super charged 3800 n my 01 pontaic prix gt the motor out of an 02 Bonneville/02 Buick regail gs hd tranny, need gtp pcm or have pcm reprogramed. Had to change fuel injectors, map sensor n passanger side axle

1 of 1 people found this helpful.

i have a 2002 grand prix se will a 2002 grand prix gtp motor swap?

2 of 2 people found this helpful.

I have 2002 Pontiac Grand Prix GTP 200,000 plus miles. Runs and drives good. Super charger works good. Just put new plugs control module, cam position sensor, crank position sensor and new factory wiring harness running to all those items. It is getting rusty. Has factory mags. Abs light has been on for awhile. Factory power moon roof and black leather. Great parts or whole. Drive it away for the first $1000 cash. $800. If it is this week. Cole in Wisconsin 53065. The kid drives it everyday. 920-979-0808


i have a 2004 gp gt with a gen 2 3.8 can i put a 2008 3.8 motor in that car

2 of 2 people found this helpful.

I don't think you'll have any problems with that josh ..... I ended up replacing my 3.8 (06) with a 08 3.8 gen 3 .. All parts where interchangeable

I have a 2005 monte would a 98 3.8 trans ,harness and pcm.will it work ?

1995 GTP is getting gas, there's spark it tries but won't turn over. Any ideas ?


will a motor from a pontiac grandprix2004, be placed in a 2006 pontiac G6

2 of 2 people found this helpful.

Will a ecm from a 1998 pontiac grand prix gt work in a 2002 pontiac grand prix gt

3 of 3 people found this helpful.

Can i put a 2004 regal gs supercharger engine in my 2004 grand prix gtp super charger


What sc engines can fit in my 2004 grand prix gtp super charger

1 of 1 people found this helpful.

I have a 2004 Buick park avenue ultra 3800 sc whole car I also have a 2003 impala ls 3800 will my motor fit from the park ave even those the mounts are different?

1 of 1 people found this helpful.

Will a 04 Regal 3.8 Non SC Bolt into a 03 Pontiac Grand Prix GT 3.8 Non SC

Will a 1999 Grand Prix gtp engine fit in a 04 Grand Prix

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