I've seen good numbers posted just for ported head swaps. Livernois has done some and I have heard some good gains.

I'm not sure on cams.

 

Double trouble is dead on. I wonder if the port jobs cost 1/3 more?

 

Ill have to go dig out some ole mags but from what I remember. The new 3V heads blow the old 2V's outa the water. The motor is a complete different monster. The other month...5.0 Mustang mag put a basic Vorteq kit on a 05 3V, with just 8 or 10lbs of boost on stock exhaust manifolds she layed down 500rwhp.

 

The new 3V heads flow like crazy on the intake side when ported. Livernois has been selling their ported heads for awhile now, they are very nice pieces. They might make their way onto my car!

As for cams, none yet. BBR made some re-grinds, but F those.

 

I agree the new 3V motors are amazing. Thoroughbred go find that magazine, scan it and post it up on here. I missed that article and would love to read it.

 

I dont have a scanner but I bet I can find one from somebody.

 

Livernois has ported heads on their blown '05 GT. I'm not sure if it's running
stock cams or not though. From what I've seen, the 3V heads flow like crazy.

 

Do the new 3v heads flow better then the 03-04 4v heads?

 

I would have to say no, but that's just a guess honestly. I haven't
seen flow numbers for 3V vs 4V heads. I'm sure there are flow bench
numbers out there. I'll snoop around.

 

The 3V heads do not outflow the 4V heads, but are not far behind.

The Liverniois car is running, but I don't think they have had it to the track yet with the new F1 setup.