4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

SVO

Thread Tools
 
Search this Thread
 
Old Dec 21, 2007 | 10:34 PM
  #1  
TayGt's Avatar
TayGt
Thread Starter
1st Gear Member
 
Joined: Jun 2007
Posts: 137
From:
Default SVO

Has anyone hear anything about the svo heads on seanhylandmotorsports? LIke are they any good? Does anyone have then on their car?
Old Dec 21, 2007 | 11:15 PM
  #2  
oxfordgt's Avatar
oxfordgt
6th Gear Member
 
Joined: May 2006
Posts: 6,448
From: Ohio
Default RE: SVO

They are the best flowing production 2v heads. But they have the NON-PI intake ports so you have to either use non pi intake or svo
Old Dec 21, 2007 | 11:16 PM
  #3  
defconfire's Avatar
defconfire
5th Gear Member
 
Joined: Mar 2007
Posts: 3,791
From: Cary/Charlotte, NC
Default RE: SVO

How is the svo intake?
Old Dec 21, 2007 | 11:22 PM
  #4  
I G Joe's Avatar
I G Joe
5th Gear Member
 
Joined: Dec 2004
Posts: 2,821
From: The Great Northwest
Default RE: SVO

like... omg becky... look at those heads....
Old Dec 21, 2007 | 11:25 PM
  #5  
defconfire's Avatar
defconfire
5th Gear Member
 
Joined: Mar 2007
Posts: 3,791
From: Cary/Charlotte, NC
Default RE: SVO

O RLY that good?
Old Dec 21, 2007 | 11:46 PM
  #6  
sweet99's Avatar
sweet99
4th Gear Member
 
Joined: Jun 2006
Posts: 1,178
From: New York
Default RE: SVO

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?
Old Dec 21, 2007 | 11:52 PM
  #7  
sweet99's Avatar
sweet99
4th Gear Member
 
Joined: Jun 2006
Posts: 1,178
From: New York
Default RE: SVO

Sorry, pic did not come through but I will try again! Mark
Old Dec 22, 2007 | 03:18 AM
  #8  
2000GT4.6's Avatar
2000GT4.6
6th Gear Member
 
Joined: Jan 2004
Posts: 12,575
From: United States
Default 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?
1950 just to get an intake and all the parts to install it? Yikes!
Old Dec 22, 2007 | 07:19 AM
  #9  
defconfire's Avatar
defconfire
5th Gear Member
 
Joined: Mar 2007
Posts: 3,791
From: Cary/Charlotte, NC
Default RE: SVO

ORIGINAL: 2000GT4.6

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?
1950 just to get an intake and all the parts to install it? Yikes!
+1 i think I would bet better off with Patriot Stage 2 so I can use my stock pi intake.
Old Dec 22, 2007 | 08:49 AM
  #10  
sweet99's Avatar
sweet99
4th Gear Member
 
Joined: Jun 2006
Posts: 1,178
From: New York
Default RE: SVO

Since they are on what appears to be permanent back order finding a used set would be the way to go as I did. PI intake begins to fall off at 5200rpm and the SVO pulls to 6100rpm from what I have read.



All times are GMT -5. The time now is 02:52 AM.