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  1. Dinkster

    At my wits end, please help.

    Yeah, very true but I'm tired of throwing parts at this thing. I replaced the coil about a year ago but of course, that doesn't mean anything.
  2. Dinkster

    At my wits end, please help.

    I'll try that but I will say that the idle smooths out when the AC is turned on.
  3. Dinkster

    At my wits end, please help.

    Ok, so I thought because the tach needle was bouncing erratically that it could very well be a bad pick up coil in the distributor. I replaced the entire thing, set the timing at 0, holds steady, but no change in how it runs. I've tried spraying water on the coil and such looking for an arc...
  4. Dinkster

    At my wits end, please help.

    Coil is about a year old as well
  5. Dinkster

    At my wits end, please help.

    The crosscounts continually climb. They start at 0 and work their way up to 250, the start back over at 0. They are constantly changing. I did have a sluggish O2 sensor so that was changed a month ago and now seems to be working well. I just replaced the ignition module, first with a genuine...
  6. Dinkster

    At my wits end, please help.

    Ok so O2 crosscounts are good, I watch them climb to 250 then reset to 0 and start over. The CTS was at ambient this morning 71deg and steadily climbed to 195 as it warmed up. IAC is 42-48. Already tried clamping off the booster, no change. But, heres a new symptom. When the vehicle is...
  7. Dinkster

    At my wits end, please help.

    I'll check the IAC, timing and O2 crosscounts when I get back to the shop later. A few things I forgot to add. The fuel pump and regulator are new as well, fuel pressure is set to 13psi (adj reg). The CTS is new and I recall the CTS being accurate to the ambient and engine temp but I will double...
  8. Dinkster

    At my wits end, please help.

    1995 Chevy K2500 5.7l manual trans. 200k miles. Engine surges at idle, fluctuating from 500 to 1200. Also after is been running, shut down and restarted, I can feel it buck and jerk at light throttle for the first minute or so. The things I've checked / replaced are extensive, including: TPS...
  9. Dinkster

    Gen 6 big block.

    @Supercharged111 Skip white performance. They build off of the Proform bare head and say they will work on Gen VI blocks with a Felpro 1017-1 head gasket. https://www.skipwhiteperformance.com/catalog/big-block-bbc-chevy-454-496-300cc-oval-port-aluminum-heads-assem-bbc-oval-274_92785/ @L29Sub...
  10. Dinkster

    Gen 6 big block.

    The truck will be used for towing and DD. I found an Eagle rotating assembly on Ebay from a guy who changed his project plans. It included, new in the box, Eagle crank and rods, KB pistons (.030 over), Clevite bearings and Hastings rings for $900. The only problem with it is the small domed...
  11. Dinkster

    Gen 6 big block.

    Thank you for all the information. I've decided to order a 489 rotating assembly, i was just hoping to find a much cheaper route to go. I had seen a complete overhaul kit for an 8.1 for around $600 plus add the crank for another $300 and I would have been golden but obviuosly that won't work...
  12. Dinkster

    Gen 6 big block.

    Never mind, I just answered my own question. The 8.1 are 4.37 stroke vs the 4.25 on the eagle crank so it looks like the kit won't work.
  13. Dinkster

    Gen 6 big block.

    I'm building an engine for my 95 k2500 and I have a couple questions. I'm looking to build a 496 out of a 99 Gen 6 block. I found a stock rebuild kit for a 04-07 8.1l with stock cr pistons and an Eagle cast crank 104564250 and rods SIR6135P. Will these work properly in the the block and with the...
  14. Dinkster

    NV4500 w/ transfer case

    I have a 95 k2500 4x4 with the 5.7l and nv45000 that is having issues with the transfer case. I also have a 00 k2500 7.4l and 4l80e that has a good transfer case. I believe they are both np241c so my question is, are the transfer cases the same between the two, as in, are the input shaft spline...
  15. Dinkster

    2000 7.4l MPFI swap into 1995 7.4l TBI

    That's a good idea! Thanks. So, then I have a few other questions about that. Can the injector drivers from the TBI CPU handle 8 injectors? I'm assuming then the whole setup will be batch fire with all injectors firing at the same time, correct? Was the factory MPFI on the 2000 that way or...
  16. Dinkster

    Truck does not start.

    Also, what Magimerlin said. Sent from my LG-H932 using Tapatalk
  17. Dinkster

    Truck does not start.

    Then I would check battery, cables then starter. In that order. Do you have a voltmeter? If your battery is good then you need to do a voltage drop test on the battery cables. This test will tell you the resistance of the cable and connections. So you will put one terminal of the voltmeter on...
  18. Dinkster

    Truck does not start.

    Can you tell if the click is coming from the starter area? Sent from my LG-H932 using Tapatalk
  19. Dinkster

    Truck does not start.

    Could be a bad ignition switch, bad neutral safety switch, extremely dead battery, bad battery cable connection, bad starter. With the lights on, turn the key, do the lights dim? Sent from my LG-H932 using Tapatalk
  20. Dinkster

    Truck does not start.

    First off, never remove the battery cable while the truck is running. If your alternator isn't bad, then there's a good chance of ruining it by doing that. With that out of the way, the first thing you need to know is the batteries state of charge. Put a voltmeter across the terminals and check...
  21. Dinkster

    2000 7.4l MPFI swap into 1995 7.4l TBI

    I guess I'll probably end up doing the 0411 swap I was just hoping I wouldnt have to do it at the same time. I was wanting to do the FI swap first, get it running, then do the 0411 swap but where's the fun in that?! Sent from my LG-H932 using Tapatalk
  22. Dinkster

    2000 7.4l MPFI swap into 1995 7.4l TBI

    I plan on swapping the entire engine after a refresh (plus cam) but the issue I'm having is that the 00 has VATS and the 95 does not. I need to eliminate the VATS. Plus determine the pin locations/ wire colors if I need to tie it into any of the interior accessories. Sent from my LG-H932 using...
  23. Dinkster

    What headers for 7.4?

    I swapped a Vortec 7.4l into my 95 K2500 TBI and was able to use the old TBI exhaust manifolds so I imagine the headers would work as well.
  24. Dinkster

    2000 7.4l MPFI swap into 1995 7.4l TBI

    Hi, i'm new here and hope someone can help me out with this. I posted this on another site but didn't get any replies. I daily a 95 K2500 with the TBI 7.4l 4L80E and I have a 2000 K2500 parts truck with the MPFI 7.4l and I am looking to swap the FI to the 95. I am wondering if the VATS on the...

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