SVO
5th Gear Member
Joined: Jul 2006
Posts: 3,007
From: carlisle PA
RE: SVO
ORIGINAL: 2000GT4.6
1950 just to get an intake and all the parts to install it? Yikes!
ORIGINAL: sweet99
PI heads flow about 158cfm on the intake side and SVO heads flow 206cfm and are without a doubt the highest flowing heads right out of the box. Though they are NPI you can get adapters from livernois for puting PI intake on them or port match the PI intake. Not sure how well the plastic intakes can be ground if at all though.
I have the SVO intake on my PI heads and there is a pic here somewhere that I may be able to locate. It is like the bullit but larger. I had to do a bit of small fabricating to get it onto the motor but it looks great. It even has bosses for the COP's so all I had to do was drill and tap them for the coils! Since I needed a new fuel rail setup I had to use a Bullitt system and that set me back $233. Simple bracket for the alternator was needed for a top bolt. Since the intake is metal I did the coolant mod while I had it getting readied and used 3/8npt threading to 3/8" ****** ends and the cooland crossover has an extra fitting that PI's do not need so I used one of those to get the coolant from the last 2 cylinders to the waterpump and radiator. Nice mod. With a mild set of cams this will make up to 20whp or a tad more which is again more than any other manifold that would be considered a street manifold! However both the heads and intake have been discontinued according to my information. They have been on backorder for months but still show that they will be made but don't hold your breath. The intake sells for $1550. without the install kit which includes the dual 57mm TB, throttle cable, EGR tube, gaskets, inlet tube, etc. but an extra $400. or so will get you those. Anymore questions?
PI heads flow about 158cfm on the intake side and SVO heads flow 206cfm and are without a doubt the highest flowing heads right out of the box. Though they are NPI you can get adapters from livernois for puting PI intake on them or port match the PI intake. Not sure how well the plastic intakes can be ground if at all though.
I have the SVO intake on my PI heads and there is a pic here somewhere that I may be able to locate. It is like the bullit but larger. I had to do a bit of small fabricating to get it onto the motor but it looks great. It even has bosses for the COP's so all I had to do was drill and tap them for the coils! Since I needed a new fuel rail setup I had to use a Bullitt system and that set me back $233. Simple bracket for the alternator was needed for a top bolt. Since the intake is metal I did the coolant mod while I had it getting readied and used 3/8npt threading to 3/8" ****** ends and the cooland crossover has an extra fitting that PI's do not need so I used one of those to get the coolant from the last 2 cylinders to the waterpump and radiator. Nice mod. With a mild set of cams this will make up to 20whp or a tad more which is again more than any other manifold that would be considered a street manifold! However both the heads and intake have been discontinued according to my information. They have been on backorder for months but still show that they will be made but don't hold your breath. The intake sells for $1550. without the install kit which includes the dual 57mm TB, throttle cable, EGR tube, gaskets, inlet tube, etc. but an extra $400. or so will get you those. Anymore questions?
4th Gear Member
Joined: Jun 2006
Posts: 1,178
From: New York
RE: SVO
www.seanhylandmotorsports.com still lists the SVO parts though I would say he does not have them and the intake is $1550. and the install kit around $400. used is about the only way they will be found. Pricey anyways when PI heads cn be had complete for less than $400. each! Too bad Ford does not see the value in producing the parts in volume so the 2v guys could get then at affordable prices. Mark
6th Gear Member
Joined: May 2006
Posts: 6,448
From: Ohio
RE: SVO
ORIGINAL: sweet99
PI heads flow about 158cfm on the intake side and SVO heads flow 206cfm and are without a doubt the highest flowing heads right out of the box. Though they are NPI you can get adapters from livernois for puting PI intake on them or port match the PI intake. Not sure how well the plastic intakes can be ground if at all though.
I have the SVO intake on my PI heads and there is a pic here somewhere that I may be able to locate. It is like the bullit but larger. I had to do a bit of small fabricating to get it onto the motor but it looks great. It even has bosses for the COP's so all I had to do was drill and tap them for the coils! Since I needed a new fuel rail setup I had to use a Bullitt system and that set me back $233. Simple bracket for the alternator was needed for a top bolt. Since the intake is metal I did the coolant mod while I had it getting readied and used 3/8npt threading to 3/8" ****** ends and the cooland crossover has an extra fitting that PI's do not need so I used one of those to get the coolant from the last 2 cylinders to the waterpump and radiator. Nice mod. With a mild set of cams this will make up to 20whp or a tad more which is again more than any other manifold that would be considered a street manifold! However both the heads and intake have been discontinued according to my information. They have been on backorder for months but still show that they will be made but don't hold your breath. The intake sells for $1550. without the install kit which includes the dual 57mm TB, throttle cable, EGR tube, gaskets, inlet tube, etc. but an extra $400. or so will get you those. Anymore questions?
PI heads flow about 158cfm on the intake side and SVO heads flow 206cfm and are without a doubt the highest flowing heads right out of the box. Though they are NPI you can get adapters from livernois for puting PI intake on them or port match the PI intake. Not sure how well the plastic intakes can be ground if at all though.
I have the SVO intake on my PI heads and there is a pic here somewhere that I may be able to locate. It is like the bullit but larger. I had to do a bit of small fabricating to get it onto the motor but it looks great. It even has bosses for the COP's so all I had to do was drill and tap them for the coils! Since I needed a new fuel rail setup I had to use a Bullitt system and that set me back $233. Simple bracket for the alternator was needed for a top bolt. Since the intake is metal I did the coolant mod while I had it getting readied and used 3/8npt threading to 3/8" ****** ends and the cooland crossover has an extra fitting that PI's do not need so I used one of those to get the coolant from the last 2 cylinders to the waterpump and radiator. Nice mod. With a mild set of cams this will make up to 20whp or a tad more which is again more than any other manifold that would be considered a street manifold! However both the heads and intake have been discontinued according to my information. They have been on backorder for months but still show that they will be made but don't hold your breath. The intake sells for $1550. without the install kit which includes the dual 57mm TB, throttle cable, EGR tube, gaskets, inlet tube, etc. but an extra $400. or so will get you those. Anymore questions?
Puttin SVO heads on a PI shortblock will lower the compression ratio from 8.8:1 to 8.4:1 on 99-00 GTs and from 9.0:1 to 8.6:1 on 01-04 GTs because the combustion chamber volume is 51cc compared to 44cc on the PI heads. Which means that NA these heads are not ideal for a stock shortblock you need to build it with smaller dish pistons to get the compression ratio back up.
I'm sure you can use the adapters that are out there for putting pi intakes on the non pi heads in order to mount the pi intake to the svo heads.
5th Gear Member
Joined: Jul 2006
Posts: 3,007
From: carlisle PA
RE: SVO
ORIGINAL: TayGt
So i looking up the stage three patriot heads they say they flow 226cmf so would it be better to get those heads or the svo??
So i looking up the stage three patriot heads they say they flow 226cmf so would it be better to get those heads or the svo??
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