Re: Hemis

[bearbvd@domain.elided (Greg Hermann)]

At 3:00 PM 2/13/03, Paul  Misencik wrote:
>> They've designed a completely new pushrod V8 hemi...
>
>Is there some theoretical advantage to pushrod engines that I'm not getting
>here?  Why do American manufacturers continually go back to the drawing
>boards, create brand new engines from scratch and spend tens of millions of
>dollars to create all-new pushrod engines?  With cars like the Corvette, is
>it just to satisfy the purists?
>
>There are overhead cam engines that are torquey, cheap to build and
>reliable.  Why build a 21st century passenger vehicle engine that uses
>pushrods?

Particularly with a Vee configuration, you can get a LOT more displacement
into a smaller, lighter package with pushrods. For example--a Ford 5.3 s or
d ohc "Triton" V-8 DWARFS a 460 pushrod engine.

Greg
>
>Curious,
>
>Paul Misencik
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