Jump to content

Swap question

Swatbwana

Recommended Posts

Swatbwana New Member

Swatbwana

Posted
Posted

i have a 2004 denali c3 I would like to know the feasibility of swapping a 6.2 drivetrain into it from a newer denali 2007 and up, do I need the newer 6 speed or will the 6.2 bolt up to my tranny and would I need a custom harness?

oldscsc Enthusiast

oldscsc

Posted
Posted

Swapping from a Gen III to a Gen IV engine is a lot of work. You would need everything from the new truck, and probably some custom harness work as well.

 

For the money, you're far better off upgrading your current powertrain. Cam, intake, gears, head work, boost...depends how crazy you want to get. I'd hazard a guess that all of those options would be cheaper than a running 6.2 with trans, and WAY less work.

Swatbwana New Member

Swatbwana

Posted
  • Author
Posted

Hmm, that's what I was thinking, so I will get a newish 6.0 and possibly lightly boost it, my truck is hitting 200k rebuilt front rear diffs tranny went trough tranny it looked very good transfer case rebuilt , will look at a lower mileage 6.0 and some modest mods, I drove my wife's denali 2008 and love the response and sound from the 6.2 the tranny was awesome as well. I guess a 6.0 with the proper tune would be just as good with mods a little better.

Chris Senior Enthusiast

Chris

Posted
Posted

Just build rebuild your 6.0. You will be better off and if you bore it about .020 and stroke to 4" you got yourself a 408 ci or 6.7L

Chris Senior Enthusiast

Chris

Posted
Posted

Built mild and tuned conservative about 425-450 HP. probably like 475 tq

Chris Senior Enthusiast

Chris

Posted
Posted

4"x4" gives you 402 ci. Stock is 364 ci. Boring it to 4.020"×4" is what i recommend just so the cylinders are resurfaced gets you the 408 ci.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   1 Member, 0 Anonymous, 416 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...