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Thread: 6.2 upgrades

  1. #1

    Default 6.2 upgrades

    hi i am new to diesels i was wondering if a 1990 6.2 manifold was an upgrade for my 87 i can purchase a 1990 6.2 with 14000 k on it and it has a bigger manifold the person bought it from a army surplus place he has all the paper work it also has two thermostats and a set of headers. he told me the army still uses this type of motor in there humvees is this true or a load found very little on this motor thanks

  2. #2

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    Welcome to the club. Sorry can't help with your question, but I'm sure someone on this site can.

  3. #3
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    Eddie Z71's Avatar
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    Hi, and welcome to the site! Glad to have you here!
    Eddie , 2000 Chevy Tahoe Z71 (old style)

  4. #4

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    Welcome to the GMTC! From what I remember, the '87 and '90 model diesels were totally different. Good luck!


    2010 Z/71 Colorado C/C
    Black 4X4 w/5.3L V8
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  5. #5
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    Sorry I do not have the answer to your question...but welcome!!! I am sure someone here has an answer (or 2).


    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
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  6. #6

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    I want to thank everyone for your help the 90 manifold bolted right up the motor runs a lot better i ported the manifold and turned up the pump . I also added dual 2and half inch pipes this is a huge improvement over the gas motor

  7. #7
    Legend Bigbomber's Avatar
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    Welcome to the club!
    [/SIGPIC]2009 Chevy Silverado LT 1500 EXT CAB 4X4 Vortec 4.8L SFI,K&N air filter,Weathertech Floor Liners ,Weathertech Stone/Bug Deflector, Line X Spray On Bedliner, TruXport Rollup Tonneau Cover, Molded Mudguards, Viper 5701 LE 2 way Security Alarm/Remote Starter, Xm Satelite Radio,BILSTEIN 5100 rear shocks,BILSTEIN 5100 front levelling shocks,READYLIFT 2" rear lift blocks,Goodyear Wrangler Territorys -265/70R 17"

  8. #8
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    ******Thread moved**********
    If you have any questions you are more than welcome to PM and i will be happy to explain. Also welcome aboard.
    Mike

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  9. #9

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    why not just get a 96's exhaust manifolds with the turbo on it and do a turbo? The manifolds cost only like $500 with the turbo, then just take the rest of the turbo with it.
    www.youtube.com/ippielb
    2002 Chevrolet Silverado 1500 z71 1985 Chevrolet Silverado k10 2006 Chevrolet Silverado 2500hd 6.6l LLY Duramax
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  10. #10

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    I did not no that the 6.5 manifold would fit i asked on other sites and they sid they would be shorter i looked up the gaskets and they are different part numbers so i was just trying to get the hp from mods to the na motor with the mods ive already done huge improvement i like the diesel do you no where i can source a turbo and manifold thanks

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