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Forum: 4.3L V6 Engine Tech

Vortech 4300, LU3 & LB4 Motors


  1.   Sticky Threads  

  2. Smile Sticky Thread Sticky: 4.3L Vortec Marine Intake Conversion Helpfull Hints:

    Our Test Mule... 98 GMC 4dr Mega Moose Jimmy 4x4. Hello 4.3L Fans.... If your looking for some information for deciding weather the Marine...

    UR50SLO
    24 Pages
    1 2 3 ... 24
    • Replies: 357
    • Views: 201,915
    10-04-2016 09:33 AM Go to last post
  3. Sticky Thread Sticky: 4.3L V6 Platforms and Engine Codes

    Thanks to Josh Downey and Wikipedia for the info. The Vortec 4300 is a 90° V6 truck engine, replacing the Chevrolet 250 in light trucks and...

    • Replies: 4
    • Views: 13,434
    06-21-2013 02:42 PM Go to last post
  4.   Normal Threads  

  1. 350 hp v6

    Is it possible to build a 4.3 to 350 HP (or more) on a carburetor? I want something economical and durable that would work in place of v8, just to...

    • Replies: 0
    • Views: 241
    11-14-2016 05:46 PM Go to last post
  2. building a 4.3l

    ok so i can do the 60*(3400) thing, but im looking at a 92 4.3l v6 to rebuild better stonger faster for my boss. i have found a few things that are...

    gectek
    2 Pages
    1 2
    • Replies: 21
    • Views: 17,054
    09-09-2016 03:01 PM Go to last post
  3. Question Does 1991 chevy s10 4.3L need oil slinger?

    I have a 1991 chevy s10 4.3L v6. When removing the timing cover, there did not appear to be an oil slinger. The chain was in pretty bad shape and the...

    • Replies: 0
    • Views: 174
    09-04-2016 04:04 PM Go to last post
  4. 4.3 Hesitation, Bog, occasional backfire

    the motor is out of a 93 s10, ive swapped the motor in to my 4runner. I am using an affordable fuel injection harness and AFI programed chip. The ECU...

    • Replies: 0
    • Views: 317
    07-27-2016 10:10 PM Go to last post
  5. Need Low RPM Torque out of a 4.3 Vortec

    Hello everyone, I am in the process of building a 4.3L vortec with a balance shaft. I want to get all of my power from idle to 3500RPM The...

    • Replies: 1
    • Views: 676
    05-26-2016 12:35 PM Go to last post
  6. Unhappy I'm new here and could use some help, please.

    Hi guys, I'm new here and just recently got this 1991 4.3L V6 GMC S15 Jimmy SLX from a co-worker that was fed up and frustrated with working on it. ...

    • Replies: 1
    • Views: 385
    05-25-2016 05:44 PM Go to last post
  7. 4.3 Vortec Marine Intake manifold

    I'm looking for a COMPLETE 4.3 marine intake that will bolt to vortec heads for a turbo project on my 4.3 Silverado. I have seen a few on Ebay but...

    • Replies: 1
    • Views: 680
    03-17-2016 08:28 AM Go to last post
  8. N/A 4.3L performance build

    Working on my 1994 Cheyenne that I am autocrossing and wanting to build a V6 powered truck to shame the V8s i run against. The build will stay...

    • Replies: 8
    • Views: 1,241
    03-16-2016 10:57 PM Go to last post
  9. '99 4.3L swap from a '92 or '95?

    My dad has a 1998 Blazer 4wd with a bad engine and asking if I could help him put in another engine. A friend has a couple 4.3's he'd let us use:...

    • Replies: 3
    • Views: 636
    03-16-2016 10:45 PM Go to last post
  10. 4.3 Build Advice Needed

    I am building an L35 4.3 out of a 2000 blazer for a swap. I will be running the injection, ECU, wiring out of the donor truck. I WILL be having the...

    • Replies: 1
    • Views: 648
    03-16-2016 06:56 PM Go to last post
  11. Question Decisions, decisions

    Hey everyone, i'm new here as of yesterday and have found the site very informative already. I have a question regarding future plans for my 94 s10...

    • Replies: 0
    • Views: 399
    03-16-2016 06:12 PM Go to last post
  12. Rebuild

    Okay, So I have an 07 (classic) 4.3 v6 5 speed tranny. She has over 156 thou. on her. Has a front main seal leak. And puffs smoke on start up. If...

    • Replies: 1
    • Views: 660
    03-09-2016 08:01 AM Go to last post
  13. Exclamation Accel ECM # 1227746

    Hey everyone, Didn't know where to put this as it's not for sale. I have an ACCEL 1227746 ACDY8820 says 1988 4.3L TBI Free to good home....

    • Replies: 0
    • Views: 458
    02-21-2016 10:31 AM Go to last post
  14. need help with some 4.3 wiring

    Hi guys. I know it's not a car question but it is an engine question. I have a 1998 4.3 chevy engine that I would like to put in a boat. The problem...

    • Replies: 0
    • Views: 515
    02-01-2016 07:16 PM Go to last post
  15. 4.3 with TBI tries to run away

    I got a 4.3 in a 91 Chevy half ton, it was running really bad (wanting to buck at low RPM) and the TBI was full of white powderying stuff and just...

    • Replies: 1
    • Views: 824
    11-25-2015 08:05 AM Go to last post
  16. Startin up a transplanted 4.3L for the first time

    Greetings! I have transplanted a 2004 4.3L from an S10 Blazer into a '56 Willys Wagon. The transplant is complete and I am in the start up phase....

    • Replies: 1
    • Views: 952
    11-25-2015 08:03 AM Go to last post
  17. 94 4.3 vortec 4x4 to 2x oil pan

    Ok, if someone can help me with my quandary, that would be great. I know this has been done a million times. 94' Chevrolet 4.3 liter V6 out of an...

    • Replies: 0
    • Views: 585
    11-09-2015 06:49 PM Go to last post
  18. New LV3 ecotech3

    Hi from New Zealand can anyone help me with a new LV3 either crate or from a wreck Thanks Richarda

    • Replies: 1
    • Views: 1,395
    06-22-2015 10:35 AM Go to last post
  19. oil pressure question

    just acquired my uncles 85 monte carlo 4.3. the car is in good shape for the age, he died from als. in the process of restoring the car. my...

    • Replies: 0
    • Views: 744
    06-07-2015 05:27 PM Go to last post
  20. Rough idle but runs smooth above idle

    I have a rebuilt 4.3L in my blazer and it idles rough. Just above idle it smooths out. I have code P0306 cylinder 6 misfire. Any help would be...

    • Replies: 0
    • Views: 779
    06-02-2015 12:28 PM Go to last post

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