i have a 1991 gmc sierra k1500 and i was wondering what transmission is in it and will it work with a 454

Asked by josh2325166 Mar 22, 2016 at 11:23 AM about the 1991 GMC Sierra 1500 K1500 SLE 4WD Standard Cab SB

Question type: Maintenance & Repair

1 Answer

11,125

Its most likely a 3spd Auto if its not a manual trans. If the engine set up is for a V8 already, yes the tranny can handle the 454 (Say there is a 350 already in it). If its a V6 which is pretty rare in that year, there will be some modification that will need to be done in order to slap in a bigger engine. Best of luck!

1 people found this helpful.

Your Answer:

Own this car?

Share your experience with others.

1991 GMC Sierra 1500

Review another car

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,350
  • #2
    dragonflyoffshore
    Reputation
    11,520
  • #3
    John Saffrahn
    Reputation
    11,450
View All

Know more, shop wisely

Search

Related Models For Sale

Used Ford F-150
6,200 Great Deals out of 135,034 listings starting at $900
Used GMC Yukon
668 Great Deals out of 11,725 listings starting at $1,499

Used Cars for Sale

2024 GMC Sierra 1500 For Sale
107 Great Deals out of 44,844 listings starting at $28,505
2023 GMC Sierra 1500 For Sale
292 Great Deals out of 4,589 listings starting at $31,987
2022 GMC Sierra 1500 For Sale
210 Great Deals out of 1,741 listings starting at $28,600
2021 GMC Sierra 1500 For Sale
342 Great Deals out of 4,117 listings starting at $19,000
2020 GMC Sierra 1500 For Sale
202 Great Deals out of 2,437 listings starting at $17,990

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.