4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

what's the actualy hp and tq gains from the PI head swap?

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Old 03-07-2006, 01:01 AM
  #11  
98HossGT
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Default RE: what's the actualy hp and tq gains from the PI head swap?

would i have to mess with the timing at all?
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Old 03-07-2006, 01:04 AM
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XxphantomsnypzxX
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Default RE: what's the actualy hp and tq gains from the PI head swap?

hey if you can, you can get aftermarket heads and cams and really make some serious power. Steenracing.com sells a whole headswap package, stage 1 and stage 2s. I hear they're really good kits.
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Old 03-07-2006, 01:09 AM
  #13  
98HossGT
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Default RE: what's the actualy hp and tq gains from the PI head swap?

a little too expensive for me right now.

but newportnews or wherever steenracing is, is really close to me, so i will be taking my car to be dyno'd and possibly tuned this summer after i get what i want done to the car first.

o and don't forget about my timing question
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Old 03-07-2006, 02:48 AM
  #14  
1996purplestang
 
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Default RE: what's the actualy hp and tq gains from the PI head swap?

my brother took a 5.4 engine from a truck and put that in his mustang. that was a 2003 engine. the engine was rated for 260 hp. his car put out 247 rwhp and 300 lb tq.
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Old 03-07-2006, 02:51 AM
  #15  
TheBob98GT
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Default RE: what's the actualy hp and tq gains from the PI head swap?

timing is a major issue. you have to reset it all over again when you put the new heads on. do a search on modular depot. there are a couple write-ups on it
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Old 03-07-2006, 02:52 AM
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03sonicgt
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Default RE: what's the actualy hp and tq gains from the PI head swap?

The first thing I would do if I had a npi gt would be a headswap. Save up the money, and do it.
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Old 03-07-2006, 02:58 AM
  #17  
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Default RE: what's the actualy hp and tq gains from the PI head swap?

i was going to do the head swap, but i just purchased a used 2002 gt engine with 35000 miles. my 1996 engine need to be worked on. no one i my area would touch my engine because it was already out of the car. i cant wait to get my car out this spring.
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