4.3 to. A 5.3 swap

40

Asked by Ccleves Feb 04, 2017 at 08:57 PM about the 2012 GMC Sierra 1500 Work Truck Ext. Cab

Question type: General

Hey everybody was looking into doing a full drivetrain
swap for a 2012 GMC Sierra WT v6 unfortunately and
putting the 5.3 with the  matching transmission..... what
else would I need to worry about in regards to complete
the swap successfully. I k ow I need the motor
transmission which you can get the set already together
drop in ready but what else do I need.... would I require a
new harness? Computer? Anything helps other than
saying go buy a v8 truck which is not an option looking to
do the swap as a project with my wife

6 Answers

Having a donor truck is the only way to tackle such a swap. Good luck!

1 people found this helpful.
60,205

Then when you done sell all the parts not needed and get you money back. Craigslist, fleabay, ect.

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 67,333 nationwide Sierra 1500 listings starting at $3,487.

ZIP:

Own this car?

Share your experience with others.

2012 GMC Sierra 1500

Review another car

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    13,180
  • #2
    dragonflyoffshore
    Reputation
    11,930
  • #3
    John Saffrahn
    Reputation
    11,870
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Silverado 1500
4,665 Great Deals out of 114,807 listings starting at $1,990
Used Ford F-150
6,724 Great Deals out of 160,642 listings starting at $1,300
Used GMC Sierra 2500HD
649 Great Deals out of 27,167 listings starting at $5,850
Used RAM 1500
4,444 Great Deals out of 88,430 listings starting at $2,500
Used Toyota Tundra
1,121 Great Deals out of 24,460 listings starting at $975
Used Chevrolet Silverado 2500HD
1,078 Great Deals out of 35,478 listings starting at $3,400
Used Toyota Tacoma
2,184 Great Deals out of 58,908 listings starting at $2,995
Used GMC Yukon
811 Great Deals out of 12,420 listings starting at $1,681
Used Ford F-250 Super Duty
1,266 Great Deals out of 44,892 listings starting at $2,500
Used Chevrolet Tahoe
1,318 Great Deals out of 22,961 listings starting at $2,236
Used RAM 2500
1,083 Great Deals out of 36,843 listings starting at $2,500
Used GMC Canyon
358 Great Deals out of 12,133 listings starting at $2,995
Used Chevrolet Colorado
994 Great Deals out of 31,446 listings starting at $3,555

Used Cars for Sale

2025 GMC Sierra 1500 For Sale
74 Great Deals out of 39,125 listings starting at $27,799
2024 GMC Sierra 1500 For Sale
588 Great Deals out of 6,474 listings starting at $29,998
2023 GMC Sierra 1500 For Sale
440 Great Deals out of 4,566 listings starting at $23,998
2022 GMC Sierra 1500 For Sale
209 Great Deals out of 2,549 listings starting at $21,499
2021 GMC Sierra 1500 For Sale
273 Great Deals out of 3,655 listings starting at $16,870

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.