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    New Cylinder Head Question

    Replacment pistons do not have a .020 reduced compression height. GM does not build engines with one cylinder 10 thou larger than the rest.
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    just changed my plugs....

    The gap will be the reason for blowing out the spark, not the heat range. The heat range being too hot, in a higher heat cylinder, turns the tip into a hot spot that can light things when the piston is in the wrong position.
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    just changed my plugs....

    I have noticed lots of the engines with previously plugged pcv systems (the common valve cover issue) will have ring lands blown out of them if people ignore it. Makes me wonder sometimes if it would be so prevalent if the plugs weren't impossible to burn up. An iridium plug will fire no...
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    New Cylinder Head Question

    Well.. depending on how much was taken off of course. Under a couple thou just to true it should be ok.
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    New Cylinder Head Question

    Its not doing one head that is the problem, it is that you decked one head only. Be prepared for a cyclinder imbalance and possible percieved misfire codes because of it.
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    6L80 Shuddering - Questions

    Start by cleaning the MAF sensor with electrical cleaner. I have fixxed many a 6l80e shutter with getting the maf cleaned up and reading proper air flow so it can the apply proper tranny line pressure. Maybe its screwed.. but worth a try.
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    just changed my plugs....

    I run tr55 or tr6 in everything I run or build. Granted most of the stuff i do is running much higher than stock cylinder pressures, so i want the copper core as a last resort fuse, but i still huck them in even basic stuff. I can do 4 plug changes for the price of one plug change in iridium...
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    L83 5.3 with 7500rpm build - Suggestions?

    It all comes down to if you want to make the truck as quick as possible, or hit an rpm just for the sake of an rpm target. I have spun stock bottom ends to 7500 and never had a failure for years, but that is in camaros and corvettes that are light enough to pull their own weight, with the cam...
  9. H

    2012 tahoe no start

    Check the main ground wires going from the battery to the frame/engine. You can also take a set of jumper cables and hook both the positive and negative to the negative terminal on the battery, then run one on the other end to the frame, and the other to the engine for a quick ground test.
  10. H

    Intermittent starter - no crank

    Check the main ground from the battery to the front passenger cylinder head as well. That one causes no start clicks if it is faulty.
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    I forgot what a PITA it is to drop the transmission pan NEED HELP w 2 Manifold Nuts

    I use a long pry bar and leverage the exhaust down while slipping the pan out.
  12. H

    6.2 High RPM Misfire

    Lscalade: they don't change much, they are horrible tunes.
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    6.2 High RPM Misfire

    Increasing the air flow on the inlet side of a positive displacement supercharger substantially, always requires a re tune or it will run lean. Since the misfire is coming after doing the air intake mods, its almost for sure running lean at high rpms and knocking. You need to throw a wideband...
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    [SOLVED] 6.2L stutters/jerks while accelerating

    BTW, your transmission relies on the proper air flow reading to know what line pressure to run. If the truck is not seeing enough air flow (which it isnt based on the code,) you are going to smoke your tranny very soon.
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    [SOLVED] 6.2L stutters/jerks while accelerating

    For the DOD codes, the shop that installed the cam probably did the work, then started it before putting a tune in it to turn the dod system off. I would go back to them and have them pay for gm to re flash the ecu back to stock or have them flash it back to stock if they have the tools, then...
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    GMT900 Engine removal options

    You will love it next time. Your socket and ratchet for turning over the engine hangs right beside your impact, so you can reach off your gun and fine tune the nut position while the gun hangs off all the extensions. Zip a bolt out, then your gun and extensions hang in place while you turn over...
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    GMT900 Engine removal options

    I guess it all comes down to how you do each thing. I just impact the two starter bolts off, pull the starter down, then unhook the two wire nuts. I then put a few extensions together and get the torque converter bolts with my impact sitting between the radiator and front cross member, just make...
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    GMT900 Engine removal options

    I guess I am in the minority here, I have never unbolted the inner fender to change a starter. Oh well, carry on and consider me out voted here, I think taking the wheels off and inner fenders out is more work then unbolting the starter and ac pump with them in. It truly is what works best for each.
  19. H

    GMT900 Engine removal options

    Maybe I can make your life easier next time! The engine mount bolts can all be buzzed out with an impact and extensions from up top. I will give you the ac pump though, but its not too bad.
  20. H

    GMT900 Engine removal options

    For what? I can't think of a single thing that would be easier with the liners out.
  21. H

    GMT900 Engine removal options

    Its not bad at all
  22. H

    GMT900 Engine removal options

    They come out easy with the rad support and radiator in place. As for the top tranny bolts, just pull the intake manifold and remove the top tranny bolts from the top. Pull the fans, front accessories besides balancer, unhook wiring, engine mounts, then pull the engine forward and up. Then I...
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    Is it possible?

    Just need a return style fuel system, then your stock computer has a switch in it that can be set to return style fuel pump instead of variable voltage return less. Set that switch to constant voltage return style, and you are good to go.
  24. H

    Well I think a lifter left the chat

    All good, the record I have personally made with a D1 was 815 wheel with a c6 corvette standard trans with a 418 stroker and trickflow heads/102mm intake set up. That was slightly over spinning the rated max rpm and shifting at 7500 rpm. That was a 10 percent overdrive bottom with a 2.8 inch...
  25. H

    Well I think a lifter left the chat

    I zoomed in to see which head unit it is before commenting and its a D1sc. Even if it has a 20 percent overdrive lower, that is one massive charger pulley to be making 800 hp! All of the D1 cars i have ever built, take way more boost than that is pullied for to make 800 hp. What is that pulley...

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