40P'S Only Flow 15% Better Then Stockers?

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NIIIIICE

New Member

Feb 25, 2003

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Mar 22, 2004

#1

• Mar 22, 2004

• #1

I read that on the board the other day for an extra 30HP is it really worth the time and money using these heads or would you be better off saving for better heads?....I thinking of jsut dropping in my cam and intake and headers and maybe next winter putting in some real heads, or would it make more sense to wait and do it all at once....i have a 94GT vert with 40k and its totally a summer cruiser, im more looking for a good sounding car then a 1/4 car...or maybe take the money for the heads and do springs and a lite bar with tonneau cover, any comments guys?

 

stang_gt_1994

Founding Member

Mar 21, 2002

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Powder Springs, GA (30 min. from Atlanta)

Mar 22, 2004

#2

• Mar 22, 2004

• #2

They performe pretty good from what I heard but all and all if you have bigger plains then save your money and get you some alu. heads. I say this because they are lighter, less likly to ping with them, and flow better. Now I am talking about some AFR 165cc so don't call me out or anything.

 

N

NIIIIICE

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Feb 25, 2003

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Mar 22, 2004

#3

• Mar 22, 2004

• #3

Thanks Mark...if i do go with heads I planned on using the AFR'S anyways,

 

donkey_punch

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Jan 16, 2004

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northern****ingjersey

Mar 22, 2004

#4

• Mar 22, 2004

• #4

i say wait till you have the better heads. the only reason i say it is. no reason to do a cam and pay for the labor to take the heads off and put back on again. if your going to pay again to take the old heads off and put the new heads on. your just double dipping on labor costs.

 

N

NIIIIICE

New Member

Feb 25, 2003

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Mar 22, 2004

#5

• Mar 22, 2004

• #5

if you can do it yourself would you then suggest throwing in the cam?
the heads are atleast a yr away and im hoping to get a nice sound with just adding the cam for now....

 

Killer95Stang

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Aug 7, 2003

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Covina, CA

Mar 22, 2004

#6

• Mar 22, 2004

• #6

Well.. my car originally dynoed at 180rwhp when it was near stock... I think all I had was the flowmaster catback... Well with P's, cam, intake,full exhaust.. ect.. I'm up to 271rwhp, and 303tq... running rich up top.. I'm hoping to make 280-285rwhp with my re-tune.... So.. I would say a 90-100rwhp gain isn't bad for a crappy set of iron heads..

 

95snoozer

Active Member

Dec 14, 2002

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RCR

Mar 22, 2004

#7

• Mar 22, 2004

• #7

people just dont now what Ps can do.....

there a reason people go so fast on them. they are damn good heads

just go look at street warrior class and similar classes that require ford heads

 

timk

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Jan 8, 2002

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st.louis, mo

Mar 22, 2004

#8

• Mar 22, 2004

• #8

if it were all about flow numbers, we'd just port the living crap out of our existing heads and call it a day. flow numbers are just ONE way to compare a head's power potential.

the plug location and flow characteristics are what differentiate the P's from E7's and even the normal GT40's.

if you are going to do the work yourself, you won't be disappointed.

 

Stump1000

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Apr 5, 2003

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Morristown Tn

Mar 22, 2004

#9

• Mar 22, 2004

• #9

Gt40p heads are good heads. They are worth the effort and the money. I always thought that they werent all that, my dad put a set on his car and it was unreal the difference between those and stockers.

 

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306stang

Founding Member

May 11, 2001

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Owensboro, KY

Mar 22, 2004

#10

• Mar 22, 2004

• #10

P heads are very good heads and i was gonna go with them myself for a while but you can buy a good set of used aluminum heads for $3-400 more. Now i am going with some ported TFS TW's. But look on corral.net and do a search on Darkpony he made 299rwhp with P heads, AFM cam, and a cobra intake. Don't overlook the capabilites of these heads. Just my 2 cents.

 

Imyourzero

Learned that lesson as a horny teenager with lots

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Mar 10, 2002

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Hoonose, U.S.A. Posts: 39,051

Mar 22, 2004

#11

• Mar 22, 2004

• #11

Killer95Stang said:

Well.. my car originally dynoed at 180rwhp when it was near stock... I think all I had was the flowmaster catback... Well with P's, cam, intake,full exhaust.. ect.. I'm up to 271rwhp, and 303tq... running rich up top.. I'm hoping to make 280-285rwhp with my re-tune.... So.. I would say a 90-100rwhp gain isn't bad for a crappy set of iron heads..

Click to expand...

This is not a knock to the P heads but you did NOT gain 90-100rwhp from just the heads! You added "cam, intake, full exhaust, etc" so I'd say you added a LOT more than just the heads and got much more power than they would have given you by themselves. Granted, the heads were probably the largest factor but no way in hell did they give you 90-100rwhp alone. Your post admits that without me having to say anything.

But for the money, yeah they are awesome. I don't get it, because they don't seem that much better than stock E7's on paper...but you get a good combo together and the real world results don't lie. There are people who spent much more on aluminum heads going slower than P headed cars!