[mazza89]

I am upgrading my mustang, and I am trying to decide between the FRPP PI heads and the Trick Flow. Does anyone have the trick flows or know where there is some more information pertaining to the 96-98 with them on it?

I can't decide what to do, the horsepower claims from the trick flow are 390 which seems high, but the price corresponds to it. Are they really worth it? Would it be better just to stick to the stock PI setup and a light port/polish?

Any advice on the matter would be great! Gotta decide what to do in the next few days. Thanks!

[glittle75]

if you can afford the TFS, get em. Depending on the chamber size you get, your compression may go up. that coupled with a MUCH better design will boost HP alot for a N/A application. And 390hp from TFS is on an engine dyno, with no accesories. with your current setup, plus the heads you should be a little over 300 at the wheels maybe. Get yourself a nice set of cams, and even more.

[1989Gt.]

Trickflow are substantially better then the ford racing pi heads. But price is the deal breaker. I think last i checked (been awhile) they were 1900 bare before tax.

[cv4.6]

ModularHeadShop when to use TFS heads

[mazza89]

Ya that is my thing I don't know if I can justify the 3k price tag for the head setup. That is alot of money to spend. But when you consider the ford heads will be ~800 + 115 for gasket set +250 for all the timing chain and replacements it is all wrapped up for ~1300. That is substantially cheaper. I was just wondering if since it is a street car the TFS might be basically overkill and not be worth the extra.

Overall alot to think about. I want them but I think plain PI with the option of going further in the future.

Do you guys have any other links with info? cv thanks for that write up those guys are reputable around here, but unfortunately it basically says go with the TFS haha

[1989Gt.]

If your doing new heads, but yes ....

[sj408]

Your comparing apples and oranges..... you can get away with the pi head swap for less than 500 no problem and your comparing them to 2.5k+ tfs heads?

For the price of Tfs heads vs the price i paid for my pi swap i could do the pi swap to 10 cars at the same price.

Dont get me wrong if i was stacked with extra cash id get the tfs heads but your comparing some stock heads (just cause they say frpp doesnt change that they are stock) to some one off cnc heads.

[mazza89]

Originally Posted by sj408 Your comparing apples and oranges..... you can get away with the pi head swap for less than 500 no problem and your comparing them to 2.5k+ tfs heads? For the price of Tfs heads vs the price i paid for my pi swap i could do the pi swap to 10 cars at the same price. Dont get me wrong if i was stacked with extra cash id get the tfs heads but your comparing some stock heads (just cause they say frpp doesnt change that they are stock) to some one off cnc heads.

I know the FRPP heads are no different the only reason why I am considering them is the fact that they are new castings and nothing is rebuilt, so that is gonna put everything at 1000+. I just started a new job and this is gonna be my grad/Christmas present to myself. I would like the TFS heads but I really don't think I can justify it.

I totally agree that they are apples/oranges in comparison, but my mustang is surprisingly fast for being a 96... that is what makes me worry. I don't know what the reason for it but as it stands it smokes modded PI mustangs. Kinda of crazy, I feel I am taking a big step diving in to the heads at all at this point.

Like I said more or less weighing my options and looking to see if the cost/benefit of the TFS is worth it or if the money is better spent elsewhere. Such as a combo of gears/LT's/suspension basic goodies such as that.

[mazza89]

Another add on since you brought up rebuilt heads... Rebuilt heads with aftermarket cams, better than stock FRPP longevity/power wise? Really trying to get the best bang for the buck

[1989Gt.]

Pi heads with cams will make more power yes. Also they can be had for under 500 complete swap.

Cams will run you 500-600 Depending which ones you buy. Plus you might need springs for the cams

Trickflow bare heads are 1900 +tax Prob fully assembled and installed your looking at 2500 if your lucky.

Now trickflow heads will produce way more power then stock pi heads. But at that cost. id get a set of pi heads port them a bit and cam them.

[sj408]

Originally Posted by mazza89 Another add on since you brought up rebuilt heads... Rebuilt heads with aftermarket cams, better than stock FRPP longevity/power wise? Really trying to get the best bang for the buck

properly rebuilt pi heads will do the EXACT same job as you purchasing brand new ones for the rip-off price of 1k or w/e.

hell 2 months ago i bought a brand new rebuilt set of pi heads with new valves and all for 200$ cash. Go find you a deal on some heads and put the rest of the money towards longtubes, gears and some suspension.

oh dont take offense but if your roasting PI cars with your mods then they cannot drive to save their life.