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Thread: Need some oppinions

  1. #1
    Join Date
    Apr 2005
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    182

    Need some oppinions

    Looks like Ill be picking up a 5.3 for the '76 tomorrow, or Sat. I was planning to go carb'ed with a TH350, but I like the idea of 3 trucks with full parts interchangability (tranny in the z71 excepted) and since I have an extra TB verter, Im thinking bout getting a 4l60e built. I was still planning on running a carb, and a 4l60 stand alone controller, also tossing around the idea of using the PCM only to control the trans. Been doing a lot of brainstorming the past couple of days, and now Im thinking I may come out better (financially, and reliability) going with the EFI Victor Jr, 4l60e, and the PCM/harness. I have HPtuners, so tuning wont be a big issue. Main thing Im thinking is with the cost of the trans controller, and the MSD, or Edelbrock stand alone ignition system, and the cost of the LSx to TH350 converter, I may come out cheaper going all Gen III with the victor jr intake.

    The truck is just going to be used for cruising. Cruising the coast, few local car shows etc. No (planned) racing, or daily driving, just a toy!
    2000 RCSB Z-71 6l swap 12.8 Gone but not forgotten


    2008 CCSB "tow truck" Slooowwww
    1999 RCSB "WRK TRK" 4.late but getting there.

  2. #2
    my two cents, keep the engine efi, slap the 60e tranny on its ass end, forget the intake and be happy.

  3. #3
    Join Date
    Oct 2003
    Posts
    473
    Quote Originally Posted by LSXmyford View Post
    my two cents, keep the engine efi, slap the 60e tranny on its ass end, forget the intake and be happy.
    What he said.

  4. #4
    Join Date
    Apr 2005
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    182
    Ive been around these engines enough to know its stupid, but I want it to look good when I pop the hood. Im gonna be doing a few more agressive mods, so I might actually be able to use some of the power the Vic jr will make lol, seriously, I just want to use the Vic Jr cause it looks badass IMO, I know they make power a little higher in the RPM range than I really want, but Ill deal with it. Shouldnt be too different than my 5.3 with the 218/224 cam running on the stock converter lol
    2000 RCSB Z-71 6l swap 12.8 Gone but not forgotten


    2008 CCSB "tow truck" Slooowwww
    1999 RCSB "WRK TRK" 4.late but getting there.

  5. #5
    Join Date
    Oct 2003
    Posts
    473
    I honestly don't understand the use of a carburetor on any LS series engine. The way they came from GM, they start ALOT better, they run ALOT better from the slowest idle to wide open throttle & everything in between, AND they get the BEST fuel mileage in both city & highway driving, than any other V-8 engine that GM has EVER designed. Overall driveability is also a night & day difference. Not only that, but with a simple, affordable, computer tune...all of the above qualities can actually be IMPROVED upon.
    Last edited by LS1GMCTruck; 10-11-2008 at 04:38 PM.

  6. #6
    ff_jeff Guest
    do efi and the Vic Jr.

  7. #7
    Join Date
    Apr 2005
    Posts
    182
    Quote Originally Posted by ff_jeff View Post
    do efi and the Vic Jr.


    Thats what Im leaning too
    2000 RCSB Z-71 6l swap 12.8 Gone but not forgotten


    2008 CCSB "tow truck" Slooowwww
    1999 RCSB "WRK TRK" 4.late but getting there.

  8. #8
    Join Date
    Sep 2008
    Location
    Boise, Idaho
    Posts
    39
    I remember reading somewhere before I dropped in my 6.0L/4L80 combo into my 84 that your mileage sucks from switching it over to a carb. It said something along the lines of if it's fuel injected, leave it fuel injected. Its designed to run a certain way. Alot of people I talked to told me to run a carb and don't even mess with the efi, but that would have defeated the entire purpose of my build. If I wanted to run a carb, I would have dropped in a 454 or something lol It drove me absolutely nuts when everyone kept telling me what I should do and how I should have done it.
    A drunk mans words are a sober mans thoughts

    1984 GMC Sierra Classic 3/4 ton 4x4
    Dropped in 6.0L LQ4 and 4L80E transmission out of a 2000 Chevy Silverado 2500 HD

  9. #9
    Join Date
    Apr 2005
    Posts
    182
    Quote Originally Posted by Podunk View Post
    I remember reading somewhere before I dropped in my 6.0L/4L80 combo into my 84 that your mileage sucks from switching it over to a carb. It said something along the lines of if it's fuel injected, leave it fuel injected. Its designed to run a certain way. Alot of people I talked to told me to run a carb and don't even mess with the efi, but that would have defeated the entire purpose of my build. If I wanted to run a carb, I would have dropped in a 454 or something lol It drove me absolutely nuts when everyone kept telling me what I should do and how I should have done it.

    I got a old school 350 for it too, but for what it would cost for me to get it where I want, I could do the GEN III swap for way cheaper. I think Im going to stay EFI, and just get the Vic Jr intake. Fortunatly I could care less about the mileage it gets, it wont be driven enough to really matter
    2000 RCSB Z-71 6l swap 12.8 Gone but not forgotten


    2008 CCSB "tow truck" Slooowwww
    1999 RCSB "WRK TRK" 4.late but getting there.

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