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  different 351w blocks

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Author Topic:   different 351w blocks
FloJoe
Gearhead

Posts: 575
From: Port Orange, FL, USA
Registered: Dec 2000

posted 09-14-2001 09:59 PM     Click Here to See the Profile for FloJoe   Click Here to Email FloJoe     Edit/Delete Message   Reply w/Quote
I heard that there are some 351w blocks that are different in size according to the year of them. Can anyone explain it to me please?

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Gary
Gearhead

Posts: 726
From: Sarasota, Fla. USA
Registered: Jun 99

posted 09-15-2001 09:53 AM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
Im not sure about the 351W blocks being different size diamentionally, but know the earlier blocks generally have a thicker casting, webbing, etc.


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kid vishus
Gearhead

Posts: 6060
From: middle of NC
Registered: Oct 2000

posted 09-15-2001 09:58 AM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Gary:
Im not sure about the 351W blocks being different size diamentionally, but know the earlier blocks generally have a thicker casting, webbing, etc.


And a little shorter deck height. The newer blocks have a 9.5" deck height, the older, early blocks, 69-74 I believe, have a 9.48" deck height.

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bifs66
Gearhead

Posts: 245
From: Maryland
Registered: Apr 2000

posted 09-15-2001 07:09 PM     Click Here to See the Profile for bifs66   Click Here to Email bifs66     Edit/Delete Message   Reply w/Quote
According to Ford publications, the 69 and 70 blocks have the 9.48" deck height while 71 and up have the 9.5" deck. I belive this difference needs to be considered when fitting stroker assemblies.

------------------
Bernie Frank
66 Fastback restomod project
85 GT (preserved)
82 GT (original)

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Toronado3800
Gearhead

Posts: 832
From: St. Louis, MO
Registered: Jul 2001

posted 09-16-2001 04:10 PM     Click Here to See the Profile for Toronado3800     Edit/Delete Message   Reply w/Quote
yeah, I don't remember what year the cut off was, but it made a difference with my compression. Boy ain't I hopeful the guys at Summit figured it out correctly .

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