[DeTomaso] Windsor or Cleveland question..

Sean Korb spkorb at gmail.com
Thu Sep 3 11:22:03 EDT 2015


I think your application is the most important factor.  It sounds like you
are starting with a blank sheet.  Are you looking for horsepower, weight,
commonality of parts, commonality of systems, support from vendors, or a
particular rule set for racing?

When you start talking about changing an engine, even a small change can
have large consequences and  then you might want to change to a different
plan.  If you already had all the brackets and you just wanted to get it
running again, I would definitely go with the Cleveland for supportability,
performance baseline etc.  If i wanted to win a race, that really drives
what motor you put in it depending on the governing body for your race
circuit.  If cost is a concern, I would still go Cleveland since the parts
really are not that exotic and all the vendors completely support them.

But blank sheet... and you want to go fast... I really like where Kirby has
gone with that, and many of us use our car for engineering challenges so
you end up with a lot of quirky variety.  Why not source a 400 block and go
with a very large 500+ cubic inch motor?  The little 302 stroker is a lot
of power for the least weight.  And Goran would surely give you some advice
on putting a 426 Hemi in it.  Or a Coyote motor or the new Cobra motor
supercharged?  8000+ RPMs and hundreds of HP right out of the box.  Or go
really big and put a 429 Boss motor in the back or even a big block Chevy?
It's *your* car and you can build it the way that is most satisfying.  If
you build a 351W as a compromise of some kind.... you'll live with that
too.  And if you are really really attached to 351W, you should do it.

I have a fairly rare Pantera so keeping it close to stock and puttering
from car show to car show suits me fine.  Plenty of power and since I am in
an urban area there aren't a lot of opportunities to really wind it out
unless I start using School Buses for staging lights.

It doesn't keep me from dreaming, though :)

sean

On Wed, Sep 2, 2015 at 11:36 AM, Cullen McCann <cmccann1972 at gmail.com>
wrote:

>    Dear Forum,
>    I'm sure this question has been discussed more than once in the past,
>    but I cant readily find it and have only been intermittently involved
>    with the Pantera following over the years.
>    If I get my facts wrong, forgive me. Some is based on research and some
>    based on perception.
>    351 Cleveland or Windsor?
>    I need to build a motor for my car anyway. I do not have the original
>    engine or anyA engine for it at this time. I have had several 351w
>    motors over the years. I understand the following criteria to be true.
>    Both motors displace the same number, approximately, of cubic inches.
>    Both have the same bellhousing bolt pattern. Both have the same motor
>    mount locations. The Windsor is slightly narrower, leaving
>    theoretically more room for headers, fuel tanks, etc on either side.
>    (?) length and height appear negligibly different.A
>    The Windsor is lighter in pounds. According to a few online sources:
>    A
>    [1]http://www.mustangsandmore.com/ubb/EngineDimensions.html
>    ....theA WindsorA  appears to be about 25A lbs lighter,A depending on
>    source and configuration.A Not a huge benefit, but certainly not a
>    drawback . The aftermarket support forA WindsorA family engines appears
>    significantly larger...A everyA 289-302-351w cylinder headA isA an
>    option.A Many different manufacturers and models fromA Trickflow,
>    Brodix, AFR, Ford motorsport,A Edelbrock etc are to choose from. I know
>    of 600-plus streetableA horsepower motors in both. I have a Windsor
>    with similar performance numbers in my Cobra Replica. It was not hard
>    to make 550 horse in the Windsor and parts were very easy to get
>    through and through.
>    My perception is that the Cleveland motor aftermarket support is much
>    narrower, much more limited in choices for heads, intakes availability
>    of good blocks, etc. Factory accessories, exhaustA systemsA etc are of
>    no concern to me.
>    So...the obvious forthcoming question...if originality wasn't a driving
>    concern...why go Cleveland?? Whats the motivation other thanA purity? I
>    find that aA majority of PanteraA enthusiastsA aren't purists anyway.
>    Are their other fitment concernsA I'm not aware of?
>    Thanks for your thoughts..
>    Cullen
>    .
>
> References
>
>    1. http://www.mustangsandmore.com/ubb/EngineDimensions.html
>
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>
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-- 
Sean Korb spkorb at spkorb.org http://www.spkorb.org
'65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera #1382
"The more you drive, the less intelligent you get" --Miller
"Computers are useless.  They can only give you answers." -P. Picasso
-------------- next part --------------
   I think your application is the most important factor.A  It sounds like
   you are starting with a blank sheet.A  Are you looking for horsepower,
   weight, commonality of parts, commonality of systems, support from
   vendors, or a particular rule set for racing?
   When you start talking about changing an engine, even a small change
   can have large consequences and A then you might want to change to a
   different plan.A  If you already had all the brackets and you just
   wanted to get it running again, I would definitely go with the
   Cleveland for supportability, performance baseline etc.A  If i wanted
   to win a race, that really drives what motor you put in it depending on
   the governing body for your race circuit.A  If cost is a concern, I
   would still go Cleveland since the parts really are not that exotic and
   all the vendors completely support them.
   But blank sheet... and you want to go fast... I really like where Kirby
   has gone with that, and many of us use our car for engineering
   challenges so you end up with a lot of quirky variety.A  Why not source
   a 400 block and go with a very large 500+ cubic inch motor?A  The
   little 302 stroker is a lot of power for the least weight.A  And Goran
   would surely give you some advice on putting a 426 Hemi in it.A  Or a
   Coyote motor or the new Cobra motor supercharged? A 8000+ RPMs and
   hundreds of HP right out of the box.A  Or go really big and put a 429
   Boss motor in the back or even a big block Chevy?A  It's *your* car and
   you can build it the way that is most satisfying.A  If you build a 351W
   as a compromise of some kind.... you'll live with that too.A  And if
   you are really really attached to 351W, you should do it.
   I have a fairly rare Pantera so keeping it close to stock and puttering
   from car show to car show suits me fine.A  Plenty of power and since I
   am in an urban area there aren't a lot of opportunities to really wind
   it out unless I start using School Buses for staging lights.
   It doesn't keep me from dreaming, though :)
   sean

   On Wed, Sep 2, 2015 at 11:36 AM, Cullen McCann
   <[1]cmccann1972 at gmail.com> wrote:

     A  A Dear Forum,
     A  A I'm sure this question has been discussed more than once in the
     past,
     A  A but I cant readily find it and have only been intermittently
     involved
     A  A with the Pantera following over the years.
     A  A If I get my facts wrong, forgive me. Some is based on research
     and some
     A  A based on perception.
     A  A 351 Cleveland or Windsor?
     A  A I need to build a motor for my car anyway. I do not have the
     original
     A  A engine or anyA engine for it at this time. I have had several
     351w
     A  A motors over the years. I understand the following criteria to
     be true.
     A  A Both motors displace the same number, approximately, of cubic
     inches.
     A  A Both have the same bellhousing bolt pattern. Both have the same
     motor
     A  A mount locations. The Windsor is slightly narrower, leaving
     A  A theoretically more room for headers, fuel tanks, etc on either
     side.
     A  A (?) length and height appear negligibly different.A
     A  A The Windsor is lighter in pounds. According to a few online
     sources:
     A  A A
     A  A [1][2]http://www.mustangsandmore.com/ubb/EngineDimensions.html
     A  A ....theA WindsorAA  appears to be about 25A lbs lighter,A
     depending on
     A  A source and configuration.A Not a huge benefit, but certainly
     not a
     A  A drawback . The aftermarket support forA WindsorA family engines
     appears
     A  A significantly larger...A everyA 289-302-351w cylinder headA isA
     an
     A  A option.A Many different manufacturers and models fromA
     Trickflow,
     A  A Brodix, AFR, Ford motorsport,A Edelbrock etc are to choose
     from. I know
     A  A of 600-plus streetableA horsepower motors in both. I have a
     Windsor
     A  A with similar performance numbers in my Cobra Replica. It was
     not hard
     A  A to make 550 horse in the Windsor and parts were very easy to
     get
     A  A through and through.
     A  A My perception is that the Cleveland motor aftermarket support
     is much
     A  A narrower, much more limited in choices for heads, intakes
     availability
     A  A of good blocks, etc. Factory accessories, exhaustA systemsA etc
     are of
     A  A no concern to me.
     A  A So...the obvious forthcoming question...if originality wasn't a
     driving
     A  A concern...why go Cleveland?? Whats the motivation other thanA
     purity? I
     A  A find that aA majority of PanteraA enthusiastsA aren't purists
     anyway.
     A  A Are their other fitment concernsA I'm not aware of?
     A  A Thanks for your thoughts..
     A  A Cullen
     A  A .
     References
     A  A 1. [3]http://www.mustangsandmore.com/ubb/EngineDimensions.html
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   --
   Sean Korb [6]spkorb at spkorb.org [7]http://www.spkorb.org
   '65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera
   #1382
   "The more you drive, the less intelligent you get" --Miller
   "Computers are useless.A  They can only give you answers." -P. Picasso

References

   1. mailto:cmccann1972 at gmail.com
   2. http://www.mustangsandmore.com/ubb/EngineDimensions.html
   3. http://www.mustangsandmore.com/ubb/EngineDimensions.html
   4. mailto:DeTomaso at poca.com
   5. http://poca.com/mailman/listinfo/detomaso_poca.com
   6. mailto:spkorb at spkorb.org
   7. http://www.spkorb.org/


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