Recent content by 8T7K5

  1. 8T7K5

    L29 Coil near plug questions

    Ok thanks. I figured they'd work, I also thought about using the same ones that the L21 and 8.1 used as their part numbers cross reference. Out of curiousity, will 22 gauge wire work ok for the new coil harness from the plugs into the PCM?
  2. 8T7K5

    L29 Coil near plug questions

    Thanks, that's a great idea! I'd never thought about stacking them. Which coils did you use? Any LS type coil works, right?
  3. 8T7K5

    L29 Coil near plug questions

    These are the L21 valve covers, I don't see any way to make it work short of moving the coils.
  4. 8T7K5

    L29 Coil near plug questions

    That's what i was afraid of. I wonder if a cold air intake would work since it comes straight off of the throttle body.
  5. 8T7K5

    L29 Coil near plug questions

    As soon as my engine is back from the machine shop I'm planning on tackling the 0411 swap and coil near plug on my 99 big block. I've got a set of L21 valve covers and without having the engine to mock it up, it looks like (from pictures) the bottom of the resonator is going to interfere with...
  6. 8T7K5

    12200411 PCM swap for 1996 to 2000 GMT400 trucks

    Tried that too and no response.
  7. 8T7K5

    12200411 PCM swap for 1996 to 2000 GMT400 trucks

    I have no idea who to PayPal or I'd gladly do it, I thought he contacted us with his email address first.
  8. 8T7K5

    12200411 PCM swap for 1996 to 2000 GMT400 trucks

    Has anybody gotten the pinout?
  9. 8T7K5

    12200411 PCM swap for 1996 to 2000 GMT400 trucks

    PM'd you also, needing pinouts for my 99 K2500 Suburban/454/4L80. I'll also be doing a coil near plug swap at the same time. Email is [email protected], thank you
  10. 8T7K5

    L29 CNP conversion

    While the engine is out of my K2500 Suburban getting ready to be rebuilt I've been thinking about doing a coil near plug conversion. I know the L21 came with CNP from the factory and I've managed to find a set of L21 valve covers. I know nothing about wiring and in order to do this I'd need to...
  11. 8T7K5

    99 454 Running bad

    I've been chasing a similar misfire on my 99 454 K2500 Suburban, mine are on 3 and 4. Did all of the things you did except replacing lifters. Pulled 3 and 4 injectors to test and see if they were working right and they were. Compression is good. If I had hair, I'd be pulling it out.
  12. 8T7K5

    Vortec big block questions

    Engine is already out though. It was taken out to make it easier to replace the flexplate, oil pan gasket, and drill out/helicoil the broken starter bolt. The 2 misfires were the issue I was chasing prior to pulling it but I had to stop because the starter misalignment issue needed to be...
  13. 8T7K5

    Vortec big block questions

    Well it looks like I'm going to send the block to the machine shop. I had planned on drilling out a broken starter bolt and putting in a helicoil today but the previous owner screwed it up so bad I can't get the drill bit in straight. Maybe it's time to just have it rebuilt, have the heads...
  14. 8T7K5

    Vortec big block questions

    So if everything else is good, my most likely cause of the 2 misfires will be valves?
  15. 8T7K5

    Vortec big block questions

    1-135; 3-125; 5-145; 7-145; 2-135; 4-145; 6-130; 8-130 I checked, double checked, and checked the plug wires again for that. Don't know the accuracy of the tester or if it's been tested itself. Balancer is getting replaced because the rubber is dry rotted and pieces are missing, which is odd...
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