[DeTomaso] All AL Engines

jderyke at aol.com jderyke at aol.com
Thu Oct 23 14:08:50 EDT 2014 

FWIW: the reasons for picking an aftermarket aluminum block are -1) repairability, 2)- lightness, 3)- capacity to use a BIG bore and stroke with a better oil system. My race block only drops about 50 lbs over an iron Cleveland; aluminum heads will drop more weight- 62 lbs! By far the most valuable attribute is the big bore capacity and far better oiling. 
Next, most aluminum blocks are Windsor type except for MME's and Buttermore's Cleveland copies and both come as raw castings that need a pro machine shop to complete, not just an engine builder. There isn't a single hole in those blocks that's threaded or bored as-delivered, and no surfaces are finished. There's a tremendous amount of machining needed before they will bolt together. Thats why they're so expensive as an operating engine.


 

 

 

-----Original Message-----
From: mark skwarek via DeTomaso <detomaso at poca.com>
To: Ed Mendez <edducati at mac.com>; Jack Dunn <po917k at yahoo.com>
Cc: detomaso <detomaso at poca.com>
Sent: Thu, Oct 23, 2014 6:17 am
Subject: Re: [DeTomaso] All AL Engines


   Its a lot of money for mediocre performance.
   On Wednesday, October 22, 2014 5:11 PM, Ed Mendez <edducati at mac.com>
   wrote:
   Damn I want a ride in that thing. Just don't kill me as the last GT-40
   superformance car I rode in spun out in heavy on coming traffic across
   3 lanes of traffic and the only thing that saved us from being T-boned
   was that a lady hit our passenger side rear tire and stopped us from
   spinning.
   Cause, rear locked under heavy braking at 120mph.
   Wish I had my GoPro for that.
   Ed
   Sent from iPhone 5s
   > On Oct 22, 2014, at 13:57, Jack Dunn via DeTomaso
   <[1]detomaso at poca.com> wrote:
   >
   >    I bought a 438" CHI heads Dart iron block Windsor solid roller
   stroker
   >  from MME about 5 yrs ago for my Superformance GT40. It is a
   fantastic
   >  street engine, loads of torque and 630 HP. Apparently part of the
   >  secret to a good torquey street motor is lots of cylinder pressure
   (I
   >  recall measuring~220psi cranking pressure), and it doesn't detonate
   on
   >  93 octane. Therefore, based on my experience, I would definitely
   >  recommend a MME engine. Mark Mckeown (owner) has a mechanical
   >  engineering degree and he really knows his stuff.
   >  FYI, I considered an AL block for this engine. But when I found out
   >  from Mark that it would cost >$3000.00 extra to do everything
   necessary
   >  to make the then current Dart AL block work, I passed. Bottom line:
   if
   >  you do want an AL block engine, I would trust Mark to build the
   engine
   >  correctly to work and last.
   >  Jack
   > _______________________________________________
   >
   > Detomaso Forum Managed by POCA
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-------------- next part --------------
   FWIW: the reasons for picking an aftermarket aluminum block are -1)
   repairability, 2)- lightness, 3)- capacity to use a BIG bore and stroke
   with a better oil system. My race block only drops about 50 lbs over an
   iron Cleveland; aluminum heads will drop more weight- 62 lbs! By far
   the most valuable attribute is the big bore capacity and far better
   oiling.
   Next, most aluminum blocks are Windsor type except for MME's and
   Buttermore's Cleveland copies and both come as raw castings that need a
   pro machine shop to complete, not just an engine builder. There isn't a
   single hole in those blocks that's threaded or bored as-delivered, and
   no surfaces are finished. There's a tremendous amount of machining
   needed before they will bolt together. Thats why they're so expensive
   as an operating engine.

   -----Original Message-----
   From: mark skwarek via DeTomaso <detomaso at poca.com>
   To: Ed Mendez <edducati at mac.com>; Jack Dunn <po917k at yahoo.com>
   Cc: detomaso <detomaso at poca.com>
   Sent: Thu, Oct 23, 2014 6:17 am
   Subject: Re: [DeTomaso] All AL Engines
   Its a lot of money for mediocre performance.
   On Wednesday, October 22, 2014 5:11 PM, Ed Mendez <[1]edducati at mac.com>
   wrote:
   Damn I want a ride in that thing. Just don't kill me as the last GT-40
   superformance car I rode in spun out in heavy on coming traffic across
   3 lanes of traffic and the only thing that saved us from being T-boned
   was that a lady hit our passenger side rear tire and stopped us from
   spinning.
   Cause, rear locked under heavy braking at 120mph.
   Wish I had my GoPro for that.
   Ed
   Sent from iPhone 5s
   > On Oct 22, 2014, at 13:57, Jack Dunn via DeTomaso
   <[1][2]detomaso at poca.com> wrote:
   >
   >    I bought a 438" CHI heads Dart iron block Windsor solid roller
   stroker
   >  from MME about 5 yrs ago for my Superformance GT40. It is a
   fantastic
   >  street engine, loads of torque and 630 HP. Apparently part of the
   >  secret to a good torquey street motor is lots of cylinder pressure
   (I
   >  recall measuring~220psi cranking pressure), and it doesn't detonate
   on
   >  93 octane. Therefore, based on my experience, I would definitely
   >  recommend a MME engine. Mark Mckeown (owner) has a mechanical
   >  engineering degree and he really knows his stuff.
   >  FYI, I considered an AL block for this engine. But when I found out
   >  from Mark that it would cost >$3000.00 extra to do everything
   necessary
   >  to make the then current Dart AL block work, I passed. Bottom line:
   if
   >  you do want an AL block engine, I would trust Mark to build the
   engine
   >  correctly to work and last.
   >  Jack
   > _______________________________________________
   >
   > Detomaso Forum Managed by POCA
   >
   > DeTomaso mailing list
   > [2][3]DeTomaso at poca.com
   > [3][4]http://poca.com/mailman/listinfo/detomaso_poca.com
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References

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References

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   7. mailto:detomaso at poca.com?
   8. mailto:DeTomaso at poca.com?
   9. http://poca.com/mailman/listinfo/detomaso_poca.com
  10. mailto:DeTomaso at poca.com?
  11. http://poca.com/mailman/listinfo/detomaso_poca.com
  12. mailto:DeTomaso at poca.com
  13. http://poca.com/mailman/listinfo/detomaso_poca.com

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