1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

LS Swap Fuel Pump

Discussion in 'Engine Swaps (Gas) LS, Vortec, LT1 , etc.' started by custodian, Dec 28, 2020.

Page 3 of 3
  1. Jan 20, 2021 at 10:51 PM #31
    hoagster

    hoagster Supporting Member Supporting Member

    Posts:
    422
    Likes Received:
    687
    Joined:
    May 16, 2017
    Location:
    California
    First Name:
    Mike
    Truck Year:
    1973, 1994
    Truck Model:
    K10, 2500 suburban
    Engine Size:
    5.3l, 7.4l
    easy!

    dualtanks.JPG
     
  2. Jan 20, 2021 at 11:23 PM #32
    Blackbeard44

    Blackbeard44 Full Access Member

    Posts:
    124
    Likes Received:
    127
    Joined:
    Jun 14, 2020
    Location:
    Washington State
    First Name:
    andy
    Truck Year:
    1985
    Truck Model:
    K20
    Engine Size:
    6.0 LS
    that takes care of the electrical side of things, just have to get tje factory switch block to select what feed and return to open or close
     
  3. Jan 20, 2021 at 11:29 PM #33
    hoagster

    hoagster Supporting Member Supporting Member

    Posts:
    422
    Likes Received:
    687
    Joined:
    May 16, 2017
    Location:
    California
    First Name:
    Mike
    Truck Year:
    1973, 1994
    Truck Model:
    K10, 2500 suburban
    Engine Size:
    5.3l, 7.4l
    have the dual tanks wired, as seen in the picture. both sides. Running a LS 6.0 you shoud have the power trigger from your controller easy peesy!

    20200912_155045.jpg

    20200912_155053.jpg
     
  4. Jan 21, 2021 at 9:17 AM #34
    custodian

    custodian Full Access Member

    Posts:
    551
    Likes Received:
    272
    Joined:
    Apr 15, 2016
    Location:
    Catawba
    First Name:
    William
    Truck Year:
    1973, 1985
    Truck Model:
    C10
    Engine Size:
    283, 350
    Does the 87-91 tank have an actual baffle in them?
     
  5. Jan 21, 2021 at 5:00 PM #35
    Camar068

    Camar068 Supporting Member Supporting Member

    Posts:
    2,570
    Likes Received:
    909
    Joined:
    Feb 5, 2014
    Location:
    Kentucky
    First Name:
    David
    Truck Year:
    1986
    Truck Model:
    K10/LM7 5.3/4L60e/np208/3.73/32"
    Engine Size:
    10 yrs Air Force
    yes
     
  6. Jan 21, 2021 at 5:17 PM #36
    Bextreme04

    Bextreme04 Full Access Member

    Posts:
    1,111
    Likes Received:
    1,156
    Joined:
    May 13, 2019
    Location:
    Oregon
    First Name:
    Eric
    Truck Year:
    1980
    Truck Model:
    K25
    Engine Size:
    350-4bbl
    No, the sending unit is not a direct replacement. The ports are wrong. You can direct fit the pump from the 95-00 GMT-400 trucks into the TBI sending unit from the same vehicle you get the TBI baffled fuel tank from. The factory TBI pump is much lower pressure and wont cut it for the LS. The factory vortec pump is an EP381. I can post some pics later of the baffle in the tank and how the vortec sender doesn't sit right.
     
Page 3 of 3

Share This Page