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GT40P's or Twisted Wedge?
How much better will the TFS heads be over GT40P's? I'm kinda being cheap and am leaning towards the P's cause they cost less, but if there is a big differencein power then I might get the TFS heads. What would be my best bet? Save on money or get more power, I don't know what to do? Please help!!!
-Craig |
Don't waste your money on the GT40P's, Get the trickflow heads.
They are MUCH better and don't even compare to the GT40P's. If you can not afford the trickflows, atleast get the gt40X heads. The trickflows also have GREAT potential. You can have them ported to flow 320+ cfm! |
what about the windsor jr's? those are really great heads too. And they compare in price for what they are.
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check these sites out
Flowdata
GT-40p site I bought the GT-40p heads and some good valve springs for $500.00, I'll spend the other $400 somewhere else. I'm sure if you're racing the TW heads are better, but for a daily driver hot rod the GT-40p heads have some merit. I did the calculations and simply could not use all the airflow of the TW heads + I like the torque of a high velocity head. Also be careful of the lift limits of the TW heads with the 2.02" intake valves Do your homework and buy the one that makes the most sense to you. |
Plain and simple your 302 isn't gonna be able to use that 320+cfm of the ported TFS heads. For a nice dailey driver with GT-40P's are a good choice. Stage 1 GT-40P's with a Cobra or Explorer intake and a TFS #1 cam should be in the 320hp range. Bolt on the TFS heads to the same combo and you'll make 20 or maybe 30 more hp. Sure if you threw on a holley intake and a bigger cam it would make more hp....but that's more money.
Stage 1 GT-40P's heads with stainless valves and .570 springs are $630 from Central Coast Mustang. A Explorer intake is $275 and a TFS #1 cam is $139. So you've got heads/cam/intake for basicly what a just the TFS heads would cost you. Take the 500 bucks you saved....spray it and be faster. I'm not gonna blow sunshine up your ***, the TFS are gonna be faster.....but they'll be 500 bucks(at least) more. To me, I would rather spend that money else where. |
Don't forget about the headers he'd have to get, that's approx. another $250. He just bought his BBK shorties too, but if he goes with this set-up, I may buy them. On the other hand if he went with the Trickflow's, he'd need to get new roller rockers and he already has 1.6's, so he would need to get 1.7's?
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How much more power on average will the Trick Flow heads make? I'm only doing this once and don't want to settle for the GT40P's if the TFS heads will make more power with my combo. Tireburner, I already have a cam and pretty good intake, so I think I'm all set in that aspect. I also like the fact that the alum will lighten things up a little bit. Does anyone have flow #'s on the 2 heads with roughly the same combo?
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Dang headers!
I had to get GT-40p specific headers, but since I did not already have headers it was not an extra cost.
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What would be the reasoning be to buy the GT40P's over the GT40X heads? The X's are aluminum, wiegh 25 lbs less each, don't require special headers, flow a lot better, and only cost about $100 more then the P's. if you are buget minded, then why not the GT40X heads??
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Big Picture
Let's look at the complete picture here,both heads have something to offer first of all.
Look at your whole combo,try to match it up best you can,if your cam is not matched up to your heads what difference is it going to make what make head you have? If you want to do it once and do it right and you are not on a budget get the TFS Twisted Wedge head,if you are on a budget get the GT40P head,the GT40P head is stout,NMRA Factory Stock cars prove that by running low 12's high 11's with trap speed between 109-114mph,so the GT40P has a lot to offer. Do your homework,look at the big picture,and what you might want to do,3-4 years down the line. I say it once I say it a million times "COMBINATION" is the key. |
RPM 427, how much do you think the GT-40x heads cost? I see them advertised for around $1,000... the same as Trick Flows.
Tireburner, 320 HP out of ported Ps, Cobra Intake, and TFS #1 cam is a little optimistic. Closer to 290-300hp. Highflow 5.0, If you only want to do it once and want max performace for your dollar, get the Trick Flows. If I were to do it again, I would spend a little more and not get the p-heads. |
Re: Big Picture
Quote:
These cars are also really stripped down too. Coming in around 2700 pounds doesn't hurt. |
The GT40X heads cost $629 a pair from summit racing. I would link you but thier catalog system prevents a direct link, check it out: http://www.summitracing.com , enter this PN in the simmit part # search: FMS-M-6049-X303
Trickflows cost $1000, not GT-40's I was mistaking thinking the P's were more expensive. But Summit sells them for $269 a pair. My friend has the GT40X headed crate engine with the B-cam in his stang (345hp rating from Ford) and it pulls like it has 360 hp. |
320hp from ported GT-40P's, a Cobra intake, a TFS #1 cam, and all the bolt ons(TB, Mass-air, full exhaust, exc.) isn't that optamistic.
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Summit prices
Even though I should be working right now instead of reading post and magazines lol,I have a Summit catalog right here in front of me,GT40P heads sell for 549 for both heads,they advertise them for 269 I would be willing to say that is for one head.
A 600 dollar pair of aluminum heads would have everyone in an uproar,there would be no GT40X heads anywhere for that price,Summit and Jegs can be mis-leading in their price,so I would look at that twice. NMRA Factory Stock has to start at 3100 pounds and have full interiors. |
RPM 427, Take another look at that advertisement. See the last sentence. "Sold Individually" 629x2=1258:eek: For a minute there, I thought I was going to have to upgrade! 629 for a pair would be a steal.
Tireburner, I have everything you've mentioned and then some. I've dyno-tuned this thing and I know what it is and isn't capable of. Also, I've been to the track and 103.5 MPH traps don't equal 320hp. Don't get sucked into the idea that these are the greatest budget-heads on the market. If anything, I would consider them slightly better than ported-stock. However, better than stock is better than stock. You get what you pay for and believe me, the manufacturers know what they can get out of them. Horsemen, thanks for the weight info. I was just assuming they gutted their rides. Still, I'd like to get my car down to 3100 pounds. |
O, ok sorry
Then what is the problem! Get the trickflows, why even consider the gt40's?? |
I have to disagree....the gt40p's with will run very good on a mild street car. In fact that's the combo i'm planning on running(once i get the cash together). If you mill the heads they will raise the compression too which = more power.
Check out some of the times/hp people are getting out of them: http://www.corral.net/forums/showthr...hreadid=113750 |
Oh and if you have longtubes they will work without special headers....
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You can get the GT40P from Mustangs Unlimited for $229 each.
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