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Any one have the 300 HP jasper motor

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Monster, Jul 31, 2002.

  1. Monster

    Monster Registered Member

    Jun 14, 2002
    Likes Received:
    New Jersey Warren county
    Just wondering if the jasper motors are any good?
  2. loudnowlouder

    loudnowlouder 1/2 ton status

    Jan 29, 2001
    Likes Received:
    Ellicott City, MD
    well i've heard good things about them, and i've heard bad things about them...
    a friend of mine has a jasper in a suburban, got close to 200k on it....but i've heard more horror stories than good ones....
    when i had my gm crate engine delievered, the truck driver said it was the best looking engine he'd ever dropped off, he delivers for jasper and said it seems like half the time he'll drop an engine off, and pick it back up a few weeks later when it blows....
    now granted this could have just been him tellin tales, but i half believed him, he had four on his truck, two going to customers, two going back to jasper...
    i dont want to completely scare you off from them since i've never used their products, and one of my friends has had great luck with them...
    but personally i wouldnt buy from them...
    just my 2 cents
  3. dyeager535

    dyeager535 1 ton status Premium Member

    Dec 13, 2000
    Likes Received:
    Roy WA
    Are Jaspers somehow in cahoots with Caterpillar?

    I vaguely remember the name "Jasper" when I went with a friend to pick up his 350, and it was at or near a Caterpillar facility. He broke a valve spring in it shortly after install, but that was the only problem. Again, not sure if it WAS Jasper, just seems that the name fits...

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