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  1. #41
    Registered Donzi502's Avatar
    My Boats:
    1990 Regazza 454 Mag
    Join Date
    Sep 2006
    We get two full seasons from the 900 with a valve train in between and we have a VERY good builder. By the way thats pretty much only acing. Keep the rpm below 5800 and you will do better. I would not hesitate to by 850s but would not automaticaly pick merc engines. What about all the other builders. There is no doubt in my mind you can hand build an engine to make 800-900 relibale HP and do it easy. Dont forget that merc have choosen the build sheet that best suites pumping out engines for a price and ease of assembly. We make 900 with a megablower and merlin heads and a very careful build. Nothing real flash. Just good solid parts, long rods, tall block, cnc ported heads well finished and a computer chosen cam. Spend the money on the valve train and let a real pro take his time, not put his boy on it. Our builder has a very similar setup and his one makes 1070 with the only real addition of ali heads and a chiller. Just my 2c. Jas

  2. #42
    Registered boatme's Avatar
    My Boats:
    Sold the Cig
    Join Date
    Jan 2001
    Spring Lake, Michigan
    Guys around here who want BIG power seem to use Chief Engines I have friends who have 900 or 950s from Chief and they are getting 200 to 300 hours on them before rebuilds

    Tommy at Chief is a great engine guy and he stands behind his product

    Merc is still the motor of choice for 700 on down but Ilmor seems to be coming on strong in mercurys playground

    I had 410 hours on my 1998 Merc 600 before I rebuilt the top halves I think that is pretty reasonable for factory power
    I loved those motors they performed great

  3. #43
    bob is offline
    Charter Member #40 Charter Member
    My Boats:
    Renegade 32
    Join Date
    Oct 2000
    Cape Coral, FL
    The problem with the service life hours is that some folks fire them and they spend the vast majority of their time up over 4000+ where they are making some hp and harder on parts. Like the folks who primarily do poker runs. I would think if you can get 100+ hours on any 1000 hp motors before you do a rebuild in this application your doing pretty darn good.

  4. #44
    Platinum Member Platinum Member NASCAT's Avatar
    My Boats:
    2017 Nor-Tech 340
    Join Date
    Aug 2003
    Charlotte, NC
    Quote Originally Posted by Catmando View Post
    What does Merc charge for the 700/NXT package? Ilmor's price for its 700 is $54,000 so with a new Teague, IMCO or BMax drive the price should be $70,000+?

    I thought $54k included the drive w/ the Ilmor??

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