>>> This looks great. Now all we need to do is find
    >>> out where we can buy them. I am working on that.
    >>>
    >>> http://www.csfimports.com/home.asp
    >>> --
    >>> Paul Lamar ...No rotor no motor.
    >
    > I've been AFK for a few days, or would have come in on this sooner.
    >
    > Back in my misspent youth, I worked for a division of Chromalloy. We
    > made radiators, cores and custom heat exchangers -- for a while,
   we were
    > THE source for new exchangers for your P-51 or P-38, not to mention
    > radiators for various antique cars.
    >
    > Radiators are SIMPLE. They are just a way of bringing coolant and
    > airflow as close together as possible while still keeping them apart.
    >
    > They are primarily of two types: crossflow and vertical flow. The
    > advantage of vertical flow is that sediment and other solids
   falls down
    > into the bottom tank. The advantage of crossflow is that you can
   make a
    > radiator that goes all the way across the front of the car.
    >
    > There is a third type of common automotive heat exchanger, not
   generally
    > considered a radiator but that's what it is anyhow -- or, more
    > precisely, a radiator is just a subgroup of heat exchangers --
   and that
    > is commonly known as a "heater core."
    >
    > Yep, that's right, the forgotten little "radiator" under the dash. It
    > is just as strong as the big radiator that won't fit into your
   airplane,
    > and they are available in a bunch of sizes and configurations.
    >
    > Go find your friendly, neighborhood radiator shop, the kind that has
    > been there so long the wooden structure is starting to petrify.
   Take a
    > look at the book they order replacement cores from. They have
   long and
    > short, rectangular and square cores, even some which are
   essentially a
    > cube. The tanks and tubes go every which way, and if you can't find
    > exactly what you like, they can take a bare core and build it into
    > whatever you need, and probably supply the header tank as well.
   If you
    > get the guy interested in the project, he'll grab that ball and run,
    > because it's not just another Chevy!
    >
    > So have some idea what you are after, but still have an open mind
   when
    > you go see them, because they are the parts experts. The guy at the
    > auto shop counter only knows how to get the box the computer told
   him to
    > get, the radiator shop guy can tell you why the one from the '65
   Mustang
    > is better than the one from the '67 Mustang (or vice versa).
    >
    > Keith Wood

   Keith,
   What's the difference between a radiator core and an
   air-conditioning core.
   George (down under)

   George,

   The major difference is around 300 - 400 psi in the a/c core v.s.
   around 20 psi for a radiator.  A/C cores are thicker walled round
   tubes to prevent them from distorting when subjected to the hgh
   pressures in the system.  Radiator cores can use a rectangular tubes
   with thinner walls and will have more surface area per square inch
   of radiator surface, hence better heat transfer.

   Joel

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