Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

TBI off 94 van....

Discussion in 'The Garage' started by stockk5, Nov 2, 2005.

  1. stockk5

    stockk5 1/2 ton status Premium Member

    Joined:
    Apr 13, 2004
    Posts:
    2,037
    Likes Received:
    73
    Location:
    Cromwell, CT
    Hey my truck is a 87 K5 w/ 305, 700r and 208.. I am getting a 350 engine that is carbed and i want to keep it tbi in my truck, so i was wondering if i could use the tbi stuff off of a 94 GM Van that had a 350 in it as well, on the new engine that im dropping into my K5 in replacement of the 305 engine.
     
    Last edited: Nov 2, 2005
  2. botboy

    botboy 1/2 ton status

    Joined:
    Aug 11, 2004
    Posts:
    225
    Likes Received:
    0
    Location:
    Delano, MN, USA
  3. stockk5

    stockk5 1/2 ton status Premium Member

    Joined:
    Apr 13, 2004
    Posts:
    2,037
    Likes Received:
    73
    Location:
    Cromwell, CT
    ok updated.. sry bout that
     
  4. jays68yak

    jays68yak 1/2 ton status

    Joined:
    Feb 27, 2003
    Posts:
    973
    Likes Received:
    2
    Location:
    Gilroy, CA
    so your blazer already has tbi? Why not just use all the tbi parts off of your 305 onto the 350?
     
  5. stockk5

    stockk5 1/2 ton status Premium Member

    Joined:
    Apr 13, 2004
    Posts:
    2,037
    Likes Received:
    73
    Location:
    Cromwell, CT
    because i was told that the 305 computer, knock sensor, and injectors will not work on a 350 because of the differences. Haha, every time i seem to research this or ask i get a bunch of conflicting answers
     
  6. jays68yak

    jays68yak 1/2 ton status

    Joined:
    Feb 27, 2003
    Posts:
    973
    Likes Received:
    2
    Location:
    Gilroy, CA
    what the computer number? Should be like a 1227477 or something. Knock sensor might be different, I think I do recall reading that. But everything else that I have read says that everything between them is the same.
     
  7. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

    Joined:
    May 23, 2005
    Posts:
    4,110
    Likes Received:
    2
    Location:
    Salt Lake City,Utah
    You are right. The 305 computer will starve the motor of fuel and you wont really notice it until you get almost to the top of a hill and right when you need the power.......... nothing but your motor starving for fuel and that happens when you baja down the trail. This happend to my buddy in his old rig when he put 305 stuff on a 350.
     
  8. btolenti

    btolenti 1/2 ton status

    Joined:
    Sep 28, 2003
    Posts:
    644
    Likes Received:
    0
    Location:
    Gilroy, CA
    THe 305 will have a different PROM in the ECM (the ECM itself should be the same), knock sensor and injectors. That should be the only differences.

    I also think some of the 305's had a different EGR valve solenoid (3-wire vs. 2-wire).....but I could be wrong.
     

Share This Page