Throttle body upgrade

Asked by Feb 10, 2019 at 11:33 AM about the 1998 Chevrolet C/K 1500

Question type: Car Customization

I have a 1998 Chevy Silverado 5.7 vortec. It has a
few mods like mpfi injectors k n cold air intake
VMAX spacer shorty headers throttle body spaces
MSD coil  MSD distributor. I'm looking in to
upgrading the throttle body but I dont know how
big I got with out having go get my truck tune. If
someone can let me know what the next size of
throttle body I can get with out a tune?

2 Answers


You can go a little bigger but going a lot bigger won't help unless you get deeper into the engine and change the camshaft, heads, etc

Right that's next year project.. you happen to what throttle body mm I can go too?

Your Answer:

Chevrolet C/K 1500 Experts

  • #1
    Andrew Olsen
  • #2
  • #3
    John Saffrahn
View All

Find great deals from top-rated dealersTM


Related Models For Sale

Used Chevrolet Silverado 1500
76 Great Deals out of 14,596 listings starting at $3,995
Used GMC Sierra 1500
68 Great Deals out of 12,570 listings starting at $3,995
Used Ford F-150
133 Great Deals out of 12,922 listings starting at $1,000
Used Chevrolet Silverado 2500HD
16 Great Deals out of 1,507 listings starting at $4,995
Used Dodge Ram 1500
11 Great Deals out of 369 listings starting at $1,950
Used Chevrolet Camaro
18 Great Deals out of 1,173 listings starting at $8,900
Used Chevrolet Tahoe
17 Great Deals out of 1,112 listings starting at $5,888
Used Toyota Tacoma
35 Great Deals out of 1,407 listings starting at $7,900

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.