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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

4v internals

  • Thread starter Thread starter RedBullitt
  • Start date Start date Aug 28, 2006

RedBullitt

New Member
Jul 7, 2004
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Morgantown WV
Aug 28, 2006
#1
  • Aug 28, 2006
  • #1
what are the internals like in an 01 cobra motor? are they glass like the gt or are they stouter?
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
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Aug 28, 2006
#2
  • Aug 28, 2006
  • #2
Stouter.
 

stangGT97

New Member
Dec 22, 2004
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Boston area, MA
Aug 28, 2006
#3
  • Aug 28, 2006
  • #3
Kilgore Trout said:
Stouter.
Click to expand...

Not really... the only real sturdier part of the rotating assembly is the crank. Well, also the fact that it has an 8 bolt flywheel, that adds some durability. But Cobras didn't get forged pistons/rods until 2003.

edit - well apparently the GT nodular iron crank is pretty durable, KenB runs one in his 10 second N/A 2V and he shifts in the 7000rpm range.
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
4,749
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Aug 28, 2006
#4
  • Aug 28, 2006
  • #4
Ah, it still has the same crappy rods as a GT then? But it does have a forged crank right?
 

stangGT97

New Member
Dec 22, 2004
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Aug 28, 2006
#5
  • Aug 28, 2006
  • #5
Kilgore Trout said:
Ah, it still has the same crappy rods as a GT then? But it does have a forged crank right?
Click to expand...

yeah... all 4V Mustang motors (excluding the automatic Mach 1s) have the forged steel crank. But the rods are still the weak points of all pre-03 cobras.
 

DropTopPony

Noob Slayer
Founding Member
Aug 13, 2002
2,570
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48
south jersey
Aug 28, 2006
#6
  • Aug 28, 2006
  • #6
sadly the NA Cobras had the same crap style piston and rods...just less dish on the pistons.
 

RedBullitt

New Member
Jul 7, 2004
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Morgantown WV
Aug 29, 2006
#7
  • Aug 29, 2006
  • #7
alright thanks, there goes that idea hah looking to do a rebuild all forged... is it always necessary to bore or machine the block when swapping out pistons and rods etc
 

stangGT97

New Member
Dec 22, 2004
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0
Boston area, MA
Aug 29, 2006
#8
  • Aug 29, 2006
  • #8
RedBullitt said:
alright thanks, there goes that idea hah looking to do a rebuild all forged... is it always necessary to bore or machine the block when swapping out pistons and rods etc
Click to expand...

well, I guess that would depend on the condition of the cylinder walls. I'd do it just to insure uniformity
 

RedBullitt

New Member
Jul 7, 2004
462
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0
Morgantown WV
Aug 29, 2006
#9
  • Aug 29, 2006
  • #9
alright, thanks
 
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