5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

stock block and bottom end?

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Old 07-20-2008, 06:38 PM
  #21  
1991LX5.0
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Default RE: stock block and bottom end?

ORIGINAL: mjr46

building it N/A and you should have no worries add a power adder and you may hit limits up around 450 to 500 rwhp block will be weak link before internals bust...usually it happens when a N/A block is built up and a heavy dose of boost is added on top of that
^exactly. Im running 450 on the 100% stock bottom end BUT i only drive the car about 3K miles a year and i know it could let go any day. I wouldnt be comfortable running that much if its your daily driver or you wont be able to fix it if the motor lets go
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Old 07-20-2008, 07:43 PM
  #22  
big ben
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Default RE: stock block and bottom end?

my mustang has factory gears and a 5 speed because its a daily driverbut my 1982 trans am with a built chevy 350 and a bomb proof th400 has 3.73s and on the highway 4000Rs get about 75mph but again thats why its a race/weekend car and not a daily driver!
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Old 07-20-2008, 09:43 PM
  #23  
Projectquick
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Default RE: stock block and bottom end?

ORIGINAL: 1991LX5.0

ORIGINAL: mjr46

building it N/A and you should have no worries add a power adder and you may hit limits up around 450 to 500 rwhp block will be weak link before internals bust...usually it happens when a N/A block is built up and a heavy dose of boost is added on top of that
^exactly. Im running 450 on the 100% stock bottom end BUT i only drive the car about 3K miles a year and i know it could let go any day. I wouldnt be comfortable running that much if its your daily driver or you wont be able to fix it if the motor lets go
Thats because you're running boost. A N/A 5.0 should be able to handle 400-450 whp no problem. Now trying to get 400-450 whp without some form of F/I, that's the hard part.
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