Engine swap

Asked by May 14, 2016 at 09:25 AM about the 1998 GMC Sierra 1500 C1500 SLE Extended Cab SB

Question type: Maintenance & Repair

I have a 1998 GMC Sierra SLE that has a
5.0 305 vortec. Can I swap that out with a
350 vortec without having to really change
anything else just drop it in and go???

1 Answer

795

The only thing u will have to change is the ecm and engine harness. The only good thing about chevys is that u can put a 350 sbc in place of any small block from the 4.3 l v6 to the 400sbc v8 with. Almost no modifications (unless u were swaping out a 4.3 from an s10 to a 350sbc) so with this info overload make sure u get the ecm u may not need to swap the harness now that i think about it hower i would just in case it will save an unneeded head ache down the road

Best Answer Mark helpful

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,520
  • #2
    John Saffrahn
    Reputation
    3,820
  • #3
    Glenn Clingenpeel
    Reputation
    3,570
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,727 Great Deals out of 156,987 listings starting at $1,000
Used Ford F-150
3,017 Great Deals out of 230,443 listings starting at $1,300
Used Toyota Tacoma
566 Great Deals out of 40,725 listings starting at $2,500
Used Dodge Ram 1500
320 Great Deals out of 10,755 listings starting at $1,988
Used Ford F-250 Super Duty
437 Great Deals out of 47,537 listings starting at $695
Used Chevrolet Tahoe
817 Great Deals out of 39,935 listings starting at $1,900
Used GMC Yukon
502 Great Deals out of 19,333 listings starting at $1,995
Used Chevrolet Camaro
378 Great Deals out of 31,274 listings starting at $3,495
Used Ford Mustang
344 Great Deals out of 42,034 listings starting at $1,488

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
8 Great Deals out of 29,805 listings starting at $22,639
2017 GMC Sierra 1500 For Sale
85 Great Deals out of 5,711 listings starting at $20,999
2016 GMC Sierra 1500 For Sale
117 Great Deals out of 3,468 listings starting at $14,500
2015 GMC Sierra 1500 For Sale
174 Great Deals out of 5,665 listings starting at $13,500
2014 GMC Sierra 1500 For Sale
193 Great Deals out of 4,280 listings starting at $11,495

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.