4.6 sohc superchargers

b78cobra

b78cobra

Forum Member
I'm new to Mod engines, and I am interested in boosting my 01 GT. I've been looking around (ebay, craigslist) and have seen a lot of 03-04 dohc blowers, and some new 3v superchargers as well. Some are for the 5.4 f150s. Are the lower intakes totally different on the 5.4 from the 4.6? Or the intake ports from dohc to sohc? It would be nice if some of these parts were compatable with each other.
 
Lower intakes on the 5.4 and 4.6 4v and 3v engines are totally different then the 2v 4.6 motors. I like the vortech kits. they come with a really nice blower bracket.
 
To do the conversion for a 03/04 blower you need the new heads... I'll stop there just go for a vortech kit made for your year GT
:thumbup:
 
there is supposed to be a new 2v head or the romour goes being unvieled at PRI. At least thats what I hear round the way.

STOCK GT said:
Dont Stop there. Supercharging or building a SOHC is a waste of time...
Go all the way and go DOHC!
Click to expand...
 
there is nothing wrong with the 2v, get a centri blower (vortech, paxton, procharger) and have at it man.
 
Yeah I've thought about swapping engines all together. But like I said I dont know shit about them. Is the 5.4 to the 4.6 what a 351 is to a 302, like just a taller deck? Dohc blocks the same as sohc? I've been told to get 315 to the tires is good for a N/A SOHC 4.6, What kind of numbers would be expected after adding a cent. blower? I really have no plans on being the fastest guy in town so I dont want to push it too hard, just to be a little more respectable. I would like to have it run mid 12s and that would be fine with me.
 
b78cobra said:
Yeah I've thought about swapping engines all together. But like I said I dont know shit about them. Is the 5.4 to the 4.6 what a 351 is to a 302, like just a taller deck? Dohc blocks the same as sohc? I've been told to get 315 to the tires is good for a N/A SOHC 4.6, What kind of numbers would be expected after adding a cent. blower? I really have no plans on being the fastest guy in town so I dont want to push it too hard, just to be a little more respectable. I would like to have it run mid 12s and that would be fine with me.
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315rwhp NA in a SOHC Is a RACE MOTOR and Expensive.
Yes, the 4.6 to 5.4 is just like the 302 to 351 just more expensive.
Best bang for the Buck would be a Marauder/Mark 8 motor, they are cheap these Days. Swap out the intake and put a blower on it.
Then Theres always the 5.4 swap, but where do you stop...
 
VTRauder said:
there is nothing wrong with the 2v, get a centri blower (vortech, paxton, procharger) and have at it man.
Click to expand...

my old combo,
Forged 96 SOHC Shortblock, Ported PI heads, 10-1 CR, Longtubes/full exhaust/ Ported SVO Intake Manifold, Eliptical TB, Vortech v2 @13psi, and every Bolton you can image. 370 RWHP @6000rpm

Next combo
160k Stock Mark 8 Motor, Factory Cobra Intake/Exhaust Manifolds and Borla Catback + Vortech v2 @13 psi 550RWHP @ 6000

Next combo
Same 160k motor as above but 15-16 psi and 7200 rpm 593hp
 
Sean said:
there is supposed to be a new 2v head or the romour goes being unvieled at PRI. At least thats what I hear round the way.
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edelbrock was supposed to do something 6 years ago but there "Wasnt a Market" for a 2v Head.

And why should there be? the 4v head kills the 2v head.
Even the new Factory 3v head is way better than a set of ported 2v SVO's


Ford pre05 SOHC= FAIL
 
wow, i wouldnt have imagined that the dohc would be worth so much extra power. Are the mark 8 engines forged internals like the cobras? Are the roots blowers on the 03 cobras worth a shit? Its seems like a lot of people tend to sell them and buy larger ones.
 
it still seems like people would buy those intakes with how many sohc engines there are out there on the road, shit people buy bullit intakes for 900 bucks for what like 5 rwhp?
 
STOCK GT said:
my old combo,
Forged 96 SOHC Shortblock, Ported PI heads, 10-1 CR, Longtubes/full exhaust/ Ported SVO Intake Manifold, Eliptical TB, Vortech v2 @13psi, and every Bolton you can image. 370 RWHP @6000rpm

Next combo
160k Stock Mark 8 Motor, Factory Cobra Intake/Exhaust Manifolds and Borla Catback + Vortech v2 @13 psi 550RWHP @ 6000

Next combo
Same 160k motor as above but 15-16 psi and 7200 rpm 593hp
Click to expand...

every bolt on? that's strange cuz I've seen and driven a mustang at the shop that was a 2V mild cam, exhaust, Paxton Novi 2000 it ended up making 680whp. You're analogy is a bit misleading.
 
VTRauder said:
every bolt on? that's strange cuz I've seen and driven a mustang at the shop that was a 2V mild cam, exhaust, Paxton Novi 2000 it ended up making 680whp. You're analogy is a bit misleading.
Click to expand...

Its not So Much an analogy, its what my car actually put down at 2 different shops.

Well a Novi 2000 efficient boost range is what 15-25psi?
where as a Vortech is 6-12psi?
Im sure the novi was pushing more than my vortechs measly 13psi

What year 2v are you talking about? I Can Totally see an 05+ Gt w/600+ Hp Streetable but not a one of the earlier ones.
 
b78cobra said:
wow, i wouldnt have imagined that the dohc would be worth so much extra power. Are the mark 8 engines forged internals like the cobras? Are the roots blowers on the 03 cobras worth a shit? Its seems like a lot of people tend to sell them and buy larger ones.
Click to expand...


Mark 8 and pre 03 Cobra shortblock are pretty much the same except for the facxt that the Cobra has an 8 bolt Forged Crank and the mark has a 6 Bolt Cast Crank. (you arent going to break either crank so it really dont matter)

only 03+Cobra shortblock are Forged.


Im not a Fan of the 03 Roots Blower, they are good to what 500hp before they really start to kill the engine with HOT Air.

If It were Me and I had to do it all over again Id go 4v with a Turbo.
I already had a Blower So all i had to do was get a new Bracket for the vortech and Cobra discharge tube.
 
STOCK GT said:
Its not So Much an analogy, its what my car actually put down at 2 different shops.

Well a Novi 2000 efficient boost range is what 15-25psi?
where as a Vortech is 6-12psi?
Im sure the novi was pushing more than my vortechs measly 13psi

What year 2v are you talking about? I Can Totally see an 05+ Gt w/600+ Hp Streetable but not a one of the earlier ones.
Click to expand...

It is misleading though because a 4V will do more with a Vortech V2 blower than the 2V motor can... there are many ways to skin a cat... some ways don't work so hot. Either way the mustang was an 02 or 03 GT... an 05+ GT would have been a 3V
 
STOCK GT said:
my old combo,
Forged 96 SOHC Shortblock, Ported PI heads, 10-1 CR, Longtubes/full exhaust/ Ported SVO Intake Manifold, Eliptical TB, Vortech v2 @13psi, and every Bolton you can image. 370 RWHP @6000rpm

Next combo
160k Stock Mark 8 Motor, Factory Cobra Intake/Exhaust Manifolds and Borla Catback + Vortech v2 @13 psi 550RWHP @ 6000

Next combo
Same 160k motor as above but 15-16 psi and 7200 rpm 593hp
Click to expand...

What year mark VIII motor are you using?
 
V3N0MUS said:
What year mark VIII motor are you using?
Click to expand...


Im not using a Mark 8 Motor anymore, but when I did it was a Bastard 93 Mark 8 (worst year) I Put it in with 160k on it it lasted 20k before I took it out and tore it down for parts...

I had bought a couple of them at one point, I Paid $300 each.

the mark 8 Motors worked out Great for me Because I still had the infamous B-heads that I Love.

As for the 99+ Crowd a Marauder motor or aviator would be the way to go for simplicity.
 
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