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Old 03-07-2011, 05:42 AM
CF Beginner
Join Date: Feb 2011
Posts: 4
Default Gutless 5.7 vortec

What can i do to get more power out of my 98 silverado! it has a 5.7 vortec 350 sb. i have a cold air intake and a throttle body space and 2 1/2 in exhaust from manifold back, is there anything i can do to add some horsepower without bigger injectors pistons cams?
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Old 03-07-2011, 09:47 AM
CF Senior Member
Join Date: Nov 2010
Posts: 368
Default more HP

In the past headers gave the most bang for the buck.
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Old 03-07-2011, 05:49 PM
CF Beginner
Join Date: Feb 2011
Posts: 4

Ill have to try it thank you
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Old 03-07-2011, 06:22 PM
CF Active Member
Join Date: Apr 2010
Location: Michigan
Posts: 294

Headers should help some. Get the computer done on it also.
04 suburban leather loaded
Supercharged 9 psi boost
Chrome package
Custom pcm
Electric fan conversion
Dual exhaust
Custom CAI
Triple pillar mount with gauges
Summer tires - 20 inch chrome with cooper H/T plus
Winter tires - stock rims with Bridgestone APT
Energy suspension kit
Air bagged rear end
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Your vehicle can go as fast as you wallet will let it
Buy a hybrid I need your gas
As always, Drive it like you stole it
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Old 04-03-2011, 09:59 AM
CF Junior Member
Join Date: Jan 2011
Location: Albuquerque, NM
Posts: 44

My K1500 has 183K miles, 5.7 Vortec, and runs strong. If your truck was gutless before your mods, something isn't right. All of the 5.7 Vortec motors make good power, so before you spend for more mods, get a good checkup. My thought.
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350, 57, 98, air, chev, chevy, cold, gutless, horse, intake, mods, power, silverado, tips, vortec

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