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  1. THarber

    PCV Valve 2008 xl 5.3 is it pressed in or how to remove?

    Its integral to the valve cover. Tim
  2. THarber

    Fed up with 5.3 Oil Consumption

    Adding an oil catch can is simple and inexpensive. LS engines have blow by, that's a known fact. Tim
  3. THarber

    2Yrs Unsolved Binding/Knocking Suspension During Sharp Turns

    I'd re-exam both front hubs as well as upper and lower ball joints. Tim
  4. THarber

    2018 6.2L, UPDATE: Lifter failure at 80k miles

    Check for broken exhaust manifold bolts. Tim
  5. THarber

    2019 leveling kit install

    I didn't touch the bump stops but am considering lengthening the ride sensor rods just a tad, I feel like mine is lower in the rear than front. It rides great. Tim
  6. THarber

    EVAP Charcoal Canister Removal Modification

    When you tune out the evap error code, all you're doing is eliminating the code, not the problem. If after replacing the canaster, valve and solenoid you still have the problem, look at the top of the gas tank for a collapsed fitting. The only way you can get the tank to fill is the allow the...
  7. THarber

    Going to do Heads/ Cam. Looking for Cylinder Head CNC Shop

    You will need to be careful on the spring rates or the VVT is not going to work right. I'd personally eliminate it all and save the aggravation, your blower is going to more than compensate for anything the VVT would help with down low. As for the heads, also no need to go that route for your...
  8. THarber

    11' Denali - DOD survivor, but now transmission shot?!?!

    I've never heard of a transmission failure due to a DOD issue but all the more reasons to go thru the ECM relearn as I posted before. OP try this: https://www.replicarclub.com/how-to-reset-transmission-control-module-chevy/ Tim
  9. THarber

    Engine Swap to stroked 6.0 (408) and general vehicle refurbishment

    Joe, If your truck already has a 4 bolt throttle body, you need not change it but the throttle body will need upgrading to the larger GM. If its a 3 bolt, yes they sell an adapter plate but that also means you have the low flow injectors and to me its not worth it. You want to make sure if you...
  10. THarber

    Will 5.3 to 6.0 (LQ4) make a big difference in towing?

    wrong post
  11. THarber

    Will 5.3 to 6.0 (LQ4) make a big difference in towing?

    6.0 is going to be better but I think you'd be better off adding a whipple or supercharger. Turbo is a lot more work. Tim
  12. THarber

    Busted fresh air intake nipple?

    IF you can get the broken part out you can force in a brass barb fitting and silicone around it. Tim
  13. THarber

    Engine Swap to stroked 6.0 (408) and general vehicle refurbishment

    Aaahh reminds me of what I just did to my old H2. Your stock throttle body is going to be 72mm to 78mm, I forget which. That's not enough for that motor. You will need to upgrade to a 4 bolt 90mm and I'd recommend a ACDelco unit for a Corvette. Your intake might also need to be upgraded to...
  14. THarber

    What is the Difference Between a Corvette 6.2 and a Denali 6.2?

    Block, and heads are the same. Camshaft has different lift and duration designed for higher rpm's. The intake is also designed for higher rpms. They have lifter issues too.
  15. THarber

    What is the Difference Between a Corvette 6.2 and a Denali 6.2?

    Cam, intake, exhaust and RPM's. Tim
  16. THarber

    2017 Yukon will not lower

    Going to just throw this out there. I don't see a 2" drop in the spindles you posted. It looks like 1/2 to 3/4 inch to me. I asked about what it does with no struts because then that would eliminate anything binding. If it lays on the frame, then you know its in the strut assembly or...
  17. THarber

    2017 Yukon will not lower

    What happens if you leave out the struts? Does it drop the the ground? Tim
  18. THarber

    2017 Yukon will not lower

    How do you have auto ride on the rear and not front? Did you change the rear ride height rods? Have you driven it at all or just dropping it and measuring? When I lowered mine, I had to drive it a bit to get everything to settle in.
  19. THarber

    E3 sparkplugs, anyone tried them?

    Different gaps for different applications was what I was inferring. Again, going back to the golden days there was a huge difference in the heat/spark from a plug gapped at .45 and .60. The E3 plugs have to depend on manufacturing specs, which we all know is not what it used to be. The cast a...
  20. THarber

    E3 sparkplugs, anyone tried them?

    Here's the thing. Back in the golden days we could gap plugs for different applications, now, if you touch them, you risk breaking the electrode. That's all good but if you look at the vast array of applications, E3 only has so many plugs so how in the word can they be gapped appropriately...
  21. THarber

    E3 sparkplugs, anyone tried them?

    For what's its worth I tried running those E3's in my H2 and Vette and just did not care for them at all. Power was reduced and idle not that smooth on each. For me, I stick with the ACDelco iridium's. Make sure you get the right heat range. Tim
  22. THarber

    Cam choice for 03 Z71

    I had a BTR Stage II low lift in my H2 and it was a beast. Also look at swapping the stock intake for a stock TBSS intake, its a cheap mod and helps the bottom end too. Tim
  23. THarber

    2022 MRC vs No MRC

    The 6.2 over the 5.3 all day long. There is not enough downside to not want the 6.2. What is it, 1 mpg better for the little motor? LOL...drive the 6.2 and then you will never think about the 5.3 again. Tim
  24. THarber

    2019 leveling kit install

    2" was advertised but I think its more like 1.5". I am extremely pleased with it.
  25. THarber

    Disconnecting 2021 OnStar

    Just pull the fuse. TH

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