The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 06-23-2014, 12:03 AM   #1
Jeremiahdavis
Registered User
 
Join Date: Jun 2014
Location: Alamosa Colorado
Posts: 10
98 gmc carb swap

I have a 98 Sierra 4.3 with a 96 5.7 I dropped in I am getting 8 or 9 mpg. It also has less power than the 4.3. The wiring is wrong the computer is wrong it shifts hard the o2s don't work. The mass air flow don't work the egr is no good. That's why I want to do a carb swap. I have everything I need I just need help with wiring. And the fuel pump. The simpler the better I was thinking turbo 350 trans.
Jeremiahdavis is offline   Reply With Quote
 

Bookmarks

Tags
5.7, carb, vortec


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:13 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com