cheddar

well as for all this i just want to see what kinda numbers payne can put down sounds like an interesting set-up i like

paynecasey69

It's gonna be a while before Payne gets this project togather. I've just been doing research. This is my last semester of college at USI. And my wife and I are expecting our baby girl in November. And on top of that I'm interested in buying a new GT first and buying the FRPP heads for it already out. I'm already working at a CPA firm but want to be a little more financially stable before dropping a 10k bomb on my old daily driver. I'm considering buying a new 96 GT with ultra low miles instead of my 235k motor.

ben790450

Patriot heads are not junk. Until you actually use them dont talk sh*t. I have and have friends that have used them. They work great. 450 at the motor with out all that is not gonna happen. Im sitting at around 340 rwhp . . which is around 400 at the motor. Thats with everything done and 11.5:1 compression. 96-98 heads will not raise your compression itll lower it. If you use a 96-98 block with 99+ heads itll raise the compression. Itll be about 10.5:1. What excatly are you looking for here?

02 Ninja

www.seanhylandmotorsport.com/mustang-crate-engines.shtml

If you have the money to spend, take your pick and call it a day.

paynecasey69

I'm glad your friends are having great results with the Patriot heads, what I was saying is that all you hear in forums is issues with those heads. Patriot heads are also very cheap compared to others in price, so I suppose you get what you pay for.
450 with out what?
As far as compression I believe you got lost in my text. I am well aware what happens when PI heads drop onto 96-98 block. And where did you get 10.5:1 compression? I've only seen results of 10.3:1.

Seanhylandmotorsportsis cool but way overpriced.

blk40th

i used to own an 04, and i thought about all the f/i its the easy way out. its nice that someones a little different in the world. i dont know much about getting the power out of it but anything is possible with the right parts, knowledge, and $$. i personally think it would be much cooler to see a n/a putting out big power like that.

sweet99

Yes, the SVO heads are the best 2v heads out of the box however they are obsolete and have been on backorder for a long time and will likley not be cast again. Same for the intake. I happen to have the SVO intake on my '99 PI head motor. Nice to have something different and I believe it flows more than the bullitt but I have not found colloberting info stating this. I like the idea the thread starter has. I alsom would like a camset that had a wide powerband instead of the cams I have now that are more of a peak power set. Sean Hyland #2730's.
Finding this set of cams is the problem and will take a lot of research.
Right now I am looking at Crower stage 2's for NPI motors:.532/.532 & 220*/224* duration. Also the stage 1's for PI heads: .540/.549 & 216*/220*. I have an automatic and want the motor to pull from 3000rpm's to 6100rpm's. The stock PI cams offer 10whp as has been sated. They actually have less duration than NPI's but have a good amount of extra torque. The heads are giving the power from the compression, again 10whp as stated. many ow simply change the intake and leave the NPI heads and cams in for a nice gain. The SVO heads and intake indeed ad 70HP minimum. I know a guy who added the heads, intake and PI cam and got 100whp from his NPI motor. The man who tuned it, Edward Clark, did it at steen racing and said a set of good aftermarket cams would have added another 40whp. I got my SVO intake but had to drive 800 miles round trip to get it nd had to but $1300. of parts toget it. Im used the cams as Scott of VT said the cms and intake would work well together. Sold the PI polished heads I got and PI intake/cams for $540. and got $85. for the shorty headers. I used the SVO, cms, 24lb injectors and Pro-M MAF calibrated for the 24lbers so I have about $675. in the change plus I sold the other parts I replaced for another $300.+. Look online and on classifieds for the SVO parts. I got lucky and got the complete install kit which brought the intake to $1900. from Ford. Mark

2000GT4.6

This thread is old, and made by someone that obviously had his mind made up and beileved everything everyone told him so long as it was what he already made his mind up about.

Until someone shows me proof by an independant tester, or some dyno sheets, I'm also going to say its a far fetched wet dream that any set of 2v modular heads, SVO/PI or NPI is going to flow 205+ CFM on the intake side. If the SVO heads were so great, they would be being made by some aftermarket company. The main thing holding back the development of aftermarket 2v heads is the price of back engineering something better... if its already been designed someone would be making it.

Its also a wet dream in hell to see 380 WHP out of any 2v with "light cam and porting". I have yet to see a single independantly confirmed dyno (in other words, a dyno done at the shop that did NOT build the engine) that shows anything over about 360ish WHP on a 2v.

sweet99

The SVO heads flowed 206cfm and 142cfm exhaust out of the box. Ported they approached stock 4v head flow. The compression would have to be 11.7 which I know of one guy running and on 91 octane. I brought this thead back to life as I have a SVO intake on my '99 GT and am looking to find what cams guys wth the heads commonly used. What the thread starter wanted to acomplish may be possible but the return on the dollar is a poor ratio as is with most NA bolt ons! He would likely need a larger cam than he wanted and the heads would have needed a full port job. Anyways I was looking for any guys running the SVO intake to see what camset they were using and the characteristics of said camset. THX!

kenv

http://forums.modulardepot.com/4-6l-...-npi-data.html

Damn! this is some Old info. If you go to that link, the posts are from 11/2003