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Thread: Mopar 400ci questions??

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  1. #1
    hemmigremmie's Avatar
    hemmigremmie is offline CHR Member Visit my Photo Gallery
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    Jul 2004
    Car Year, Make, Model: 73 prostreet Gremlin

    Mopar 400ci questions??


    Are the 76 400ci motors from thee old police interceptors any good? Are they worth a crap to rebuild? Any ideas on horsepower numbers from the factory on these? Tnx, HG
    Im not real smart, but I can lift heavy things.

  2. #2
    Bob Parmenter's Avatar
    Bob Parmenter is offline CHR Member Visit my Photo Gallery
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    Apr 2001
    Car Year, Make, Model: 32, 40 Fords,

    This is from the dark ages........................emissions control at it's infancy. Low compression, low horsepower, probably around 200 at factory rating.

    Of course, you could run it through that desk top dyno program the kid on the 283 thread used.............probably get about 400 that way!!!!
    Your Uncle Bob, Senior Geezer Curmudgeon

    It's much easier to promise someone a "free" ride on the wagon than to urge them to pull it.

    Luck occurs when preparation and opportunity converge.

  3. #3
    Mike P's Avatar
    Mike P is offline CHR Member Visit my Photo Gallery
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    Mar 2003
    SW Arizona
    Car Year, Make, Model: 57 Ply, 68 Ply Valiant, 83 El Camino

    Actually for the latter style B style Chrysler engine they are not all that bad (heads flow well and respond to pocket porting like the rest of the latter B/RB heads). It does have a cast crank and if you go the stroker route (basically using an RB crank and custom pistons) makes a heck of a motor. Otherwise, like Bob says, loose the emissions crap and use the standard MOPAR B/RB hop up parts.
    I've NEVER seen a car come from the factory that couldn't be improved.....

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