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6.5TD Parts needed to make 6.2L a TD.

Discussion in '1982-Present GM Diesel' started by AzzKicker, Jul 30, 2002.

  1. AzzKicker

    AzzKicker 1/2 ton status

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    Ok, I'm getting my hands on a 85 K20 with a 6.2. It has 97,000 miles and has been serviced at dealer since purchase. Best part is if I told you the price I'm getting it for, you'd die /forums/images/icons/smile.gif Anyway. I wanna plan this out.

    So I need to know EXACTLY what parts I will need.

    As I understand it. Its recommended to use a manifold off a 6.5 in the 93 model year. as well as the Turbo.


    What else will I actually need to do. The truck has A/C so I understand theres clearance problems with something. Can someone run the process through me.

    I'm not a Noob when it comes to Working on trucks. i'm just a noob when it comes to Diesels. This will be my first.
     
  2. carolina custom

    carolina custom 1/2 ton status

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    The 93 parts are only the wastegate. The evaporater housing will have to be either removed or relocated. Your injectors will not fit with the turbo manifold. You can get a machine shop to fab a spacer(3/8?). Or beter yet use 6.5 heads, injectors, and injector lines. Try Thedieselpage.com.
     
  3. AzzKicker

    AzzKicker 1/2 ton status

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    So basically if I locate a 6.5TD somewhere. My best bet would be to Purchase:
    6.5 heads, Injectors, Injector lines, Turbo assembly. If needs be, I can remove A/C compressor for NOW. Since By the time I get this truck, and up and running it'll be Fall temps which arent too bad.

    Now with all those parts. What WOULD need to be modified. I heard something about moddint the exhaust crossover or something like that.
     
  4. arveetek

    arveetek 1/2 ton status

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    It's not the a/c compressor that's the problem, it's the evaporator on the passenger side firewall that sticks out too far on the older style trucks.

    A complete Banks setup would be much easier to install, and it will bolt right in.

    A 6.5L turbo system will perform better, but it's much harder to install. There's not that many people who have done it in the older body style trucks with a/c.

    I've seen one truck where the guy fabbed up a turbo mount on the manifold to set the turbo sideways, and had the exhaust down-pipe go thru the inner fender well and down the outside of the frame rail.

    Casey
     
  5. arveetek

    arveetek 1/2 ton status

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    Read this to find out more about what it takes to install a 6.5L turbo system on a 6.2L in and older style truck. (Scroll down a bit on the page when it loads....the info you're looking for is about halfway down.)

    Casey
     
  6. MRBIGBLOCK

    MRBIGBLOCK 1/2 ton status

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  7. civicucv

    civicucv Registered Member

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    It's my understanding that the Banks turbo on a 6.2 will outperform a factory 6.5 turbo. I've contemplated adding a whirlygig myself. I received all of the Banks literature and was pleased to read that all necessary parts were included with their kit.
     
  8. tackettb

    tackettb Registered Member

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    I have a question somewhat related to this. I have a '96 6.5 long block in my '83 Jimmy (no a/c)with all the 6.2 injection system on it. If I scrounge up a 6.5 TD setup, intake manifold ,injector lines, would it bolt right up? Or is there some problem I might have even though there is no a/c and I have 6.5 heads? I have seen a few 6.5 TD's parting out lately. Also anybody have any idea what a used turbo should run $$?
     
  9. civicucv

    civicucv Registered Member

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    Try Ebay. Currently, tons of 6.5 parts are listed.
     
  10. calcide

    calcide 1/2 ton status

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    The banks turbo kit only comes with all the parts if you have a "J" code intake manifold. If you have an EGR, you need to buy a separate adapter kit as well. I STILL haven't put my kit on, maybe this winter I will get around to it.
     

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