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Engine swap this weekend

Discussion in 'The Garage' started by Larry, Apr 11, 2003.

  1. Larry

    Larry 1/2 ton status Premium Member GMOTM Winner Author

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    Well, the time is finally here. After a couple years of collecting parts I am finally ready to stab fat block crate engine in my 78’ and send the tired ole little 350 down the road….actually the old 350 will be going into my buddies $500 75’ Blazer project. Click here to see the Blazer

    Your all probably tired of seeing my signature read “454 on the way” but it has taken me quite some time to get to this point mainly because I used all brand spankin new GM parts where possible and of course, working on a budget. I should have some installation pictures up by the end of the weekend, but will probably not have it finished until early next week as it will also need to be towed to the exhaust shop for some new exhaust plumbing. Then I have to have the A/C lines custom made to allow the late model A/C compressor work on this old pig.

    Contrary to my original plans it will, unfortunately, be carbureted for a while until my other buddy finishes his 6.5L diesel swap into a 1995 7.4L gas Suburban that way I can pirate all the throttle body fuel injection goodies from him when he is done.


    Keep checking here and here for picture updates! /forums/images/graemlins/laugh.gif

    [​IMG]
     
  2. angrysnowplow

    angrysnowplow 1/2 ton status

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    Helluva motor you got there /forums/images/graemlins/thumb.gif
    Good luck with the swap.
     
  3. Larry

    Larry 1/2 ton status Premium Member GMOTM Winner Author

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    Here is quickie update.

    The little 350 is out of the way and the 454 will be ready to install tomorrow. Post more pictures when time permits.

    [​IMG]
    [​IMG]
     
  4. Larry

    Larry 1/2 ton status Premium Member GMOTM Winner Author

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    UPDATE: Good project gone bad!

    So there I am tonight about 10pm topping off the radiator with Dexi-Cool after about 12hrs worth of swapping, wiring and fit and finish work all excited to light this beast up when I notice a coolant leak on the driver’s side of the engine. No Problem…probably a hose or something. NOPE!

    The coolant is pouring out of the side of the block at the head gasket right between the cylinder head and block! Boy what would I do to have just one of those GM Powertrain union jerkoffs up in Tonawanda that don’t give on fuzzy terd about their craftsmanship sitting my garage right now!. Mind you, this is a brand spankin new GM Performance Parts 454 HO Gen 5 block.

    Now I get to rip the intake and head off to replace a head gasket!

    AGH!!
    /forums/images/graemlins/angryfire.gif/forums/images/graemlins/angryfire.gif/forums/images/graemlins/angryfire.gif/forums/images/graemlins/angryfire.gif/forums/images/graemlins/angryfire.gif
     
  5. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    Sorry to hear about the bad luck /forums/images/graemlins/frown.gif

    I have learned one tip when filling coolant for the first time on a new engine. Always use just straight water. It wont hurt anything and will cool fine until you know you dont have any leaks. Its cheaper and easier to clean up if theres a leak/spill. /forums/images/graemlins/tongue.gif

    John
     
  6. Larry

    Larry 1/2 ton status Premium Member GMOTM Winner Author

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    Well, I found the problem and turned out to be worse than just a head gasket. It turns out the cylinder head has a defect in it and will need to be replaced. If you look closely at the head picture you will notice a divot missing out of the corner next to the water jacket. I should find out tomorrow about warranty details.
    [​IMG]

    I yanked off the head off in record speed today…just a little over 2 hours. Boy am I glad I went to college and don't have to spin wrenches everyday to make a living anymore. I am tired man!

    Before teardown
    [​IMG]
    After teardown. Very pathetic view of a brand new 454HO with zero miles on it, eh?
    [​IMG]
     
  7. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    Man that sucks. GM will warranty it though. It most likely will be parts only. Get as much as you can from them.

    Good Luck,
    John
     
  8. Larry

    Larry 1/2 ton status Premium Member GMOTM Winner Author

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    [ QUOTE ]
    Man that sucks. GM will warranty it though. It most likely will be parts only. Get as much as you can from them.

    Good Luck,
    John

    [/ QUOTE ]

    Maybe. Long story behind the purchase of the engine. I bought it from a dealer in Chicago that went under and I cannot find my receipt nor do the new owners of the dealer have record of my purchase. I have a meeting this morning with my local dealers area parts rep to see what we can do. I work for the general so I going to start calling my low friends in high places if this guy doesn’t help me out.
     

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