calif smog legal engine swap upgrade

Asked by May 08, 2017 at 11:49 AM about the 1990 GMC Sierra 1500 K1500 SLX 4WD Standard Cab SB

Question type: General

what do you think would be the easiest engine to swap my 1990 gmc sierra
k1500 with, concidering its going to have to pass the origanal smog test .
thank you - todd stewart

3 Answers

102,005

As far as I know in California any deviation from stock is a violation in the emission standards, so I think you stuck with stock equipment.

79,475

You could install a newer engine if you made the emissions system fully functional for the year engine. After a swap you would have to go to a smog referee to have your truck certified. I would do a lot of research before doing the swap.

79,475

This might help you ----- https://www.bar.ca.gov/Industry/Engine_Change_Guidelines.html

Your Answer

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 10,513 nationwide Sierra 1500 listings starting at $1,800.

Postal Code:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,400
  • #2
    John Saffrahn
    Reputation
    3,740
  • #3
    Glenn Clingenpeel
    Reputation
    3,430
View All

Related Models For Sale

Used Ford F-150
502 Great Deals out of 10,105 listings starting at $1,800
Used Chevrolet Camaro
3 Great Deals out of 839 listings starting at $12,907
Used Ford Mustang
8 Great Deals out of 1,017 listings starting at $4,500

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
26 Great Deals out of 3,404 listings starting at $28,236
2016 GMC Sierra 1500 For Sale
39 Great Deals out of 291 listings starting at $22,995
2015 GMC Sierra 1500 For Sale
80 Great Deals out of 562 listings starting at $20,950
2014 GMC Sierra 1500 For Sale
26 Great Deals out of 457 listings starting at $17,900
2013 GMC Sierra 1500 For Sale
22 Great Deals out of 228 listings starting at $9,990

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.