2003 Sonoma engine swap

Asked by oldbowler Jan 20, 2019 at 08:45 PM about the 2003 GMC Sonoma SLS ZR2 Extended Cab 4WD

Question type: Car Customization

I have a 2003 Sonoma ZR2 4x4. I would like to swap out the 4.3 engine for a V8. Which engine would be the best choice for this swap and do I need to swap out the trans also?

3 Answers
425

Crew_Chief answered 5 years ago

Any year Chevy small block should fit in the engine bay. I'm not sure if you would have to change the oil pan. Depends on what type of rig you're looking to build. There's a plethora of information on LS swaps out there that others have done though, as well as ideas on what direction you plan on taking your Sonoma. I would visit a number of the forums online. Probably your best bet. Good luck on your build!

2 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 2003 Sonoma engine swap 3 Answers

    I have a 2003 Sonoma ZR2 4x4. I would like to swap out the 4.3 engine for a V8. Which engine would be the best choice for this swap and do I need to swap out the trans also?

    2003 GMC Sonoma SLS ZR2 Extended Cab 4WD

    -

    Car Customization

  • I have a GMC 2001 Sonoma and wondering which LS engine swap could be put in this truck? 2 Answers

    I have a GMC 2001 Sonoma and wondering which LS engine swap could be put in this truck?

    2001 GMC Sonoma SL Extended Cab Short Bed 2WD

    -

    Car Customization

  • Engine swap 2 Answers

    I got a four cylinder 2000 Sonoma/S10. I was wondering if a could take an older small block v8 and do a swap without having to switch the trans. Its an auto. And rear wheel drive. The motor doesnt ...

    2000 GMC Sonoma SL Ext Cab Short Bed 2WD

    -

    Car Customization

  • engine swap 3 Answers

    what is the biggest engine I can put in the 1993gmc Sonoma

    1993 GMC Sonoma 2 Dr SLS Standard Cab LB

    -

    Car Customization

  • 1994 Sonoma SLS wanting V8 swap advice 1 Answer

    I have a 1994 Sonoma SLS 4.3 Vortec and a 4L60E tranny. Its a "W" truck with the 200hp v6 and Central Port injection. I have a 1st Gen 350 ready to go in but not sure if I need to change over to Fue...

    1994 GMC Sonoma 2 Dr SLS Extended Cab SB

    -

    Car Customization

Sonoma

Looking for a Used Sonoma in your area?

CarGurus has 32 nationwide Sonoma listings and the tools to find you a great deal.

ZIP:

Own this car?

Share your experience with others.

2003 GMC Sonoma

Write a car review

Review another car

Shortcuts

Search GMC Sonoma Questions

CarGurus Experts

  • #1
    parkle
    Reputation
    1,090
  • #2
    Mike Bonnell
    Reputation
    660
  • #3
    James Mayfield
    Reputation
    410
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet S-10
144 listings starting at $2,690
Used Chevrolet Silverado 1500
4,193 Great Deals out of 122,915 listings starting at $2,900
Used GMC Canyon
345 Great Deals out of 12,010 listings starting at $1,900
Used Ford F-150
6,382 Great Deals out of 148,132 listings starting at $995
Used GMC Jimmy
27 listings
Used GMC Sierra 1500
1,875 Great Deals out of 67,072 listings starting at $2,495
Used Chevrolet Colorado
914 Great Deals out of 26,413 listings starting at $2,777
Used Ford Ranger
655 Great Deals out of 17,796 listings starting at $2,900
Used Toyota Tacoma
2,324 Great Deals out of 49,775 listings starting at $3,450
Used Nissan Frontier
732 Great Deals out of 21,535 listings starting at $1,900

Used Cars For Sale

2003 GMC Sonoma SLS ZR2 Extended Cab 4WD For Sale
1 listing

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. Content will be removed if CarGurus becomes aware that it violates our policies.