These new heads are so much better it's unbelievable. Just wait and see...
6.2 swap in an 08 gt
- Thread starter Czaker
- Start date
These new heads are so much better it's unbelievable. Just wait and see...
yup there big Valves with a Dual spark plugs
Have you ever driven a 5.4 3V F150? The 6.2 2V kills that engine!
Yes but different cams and only 385 hp.
wow, nice. Sorry for the newb question but what did this motor come out of? or was it just built? I know the new raptor svt has a 6.2L
Same motor as the Raptor...
I don't think they realize how much better these dual spark heads are, thats were the power came from as much as the displacement increase.
06silverbullet
Senior Member
i'm interested as too see how the 6.2 will respond to mods. it puts out the same power as the 5.0 4v stock vs stock. i wonder if the cubes in the long run will make it the better choice or not.
Torque is what the 6.2 was built for and 434 lb ft a better power curve, and more power under the curve are all good things. The only time cubes is a bad thing is if your the EPA, or your in a spec race series.
06silverbullet
Senior Member
yeah but the limiting factor i think is the 2v heads vs the 5.0's 4v heads which i think will help over come which so far they have the lower displacement vs the chevy and dodge motors.
Anthony05GT
Member
On that deal it looks like you have a couple of choices...try to lower the engine or cut a hole and fab up a one off scoop of some sort to cover the protruding snout. Sounds like another opportunity to me.
Hey guys, I have been reading on this forum for several months and saw this thread and had to post.
These are not your average inline valve 2v heads they more closely resemble the dodge hemi with the intake valve on the intake side of the head and exhaust valve on the exhaust side of the head. Huge 2.10 intake and 1.65 exhaust valves will allow this engine to breath.
Don Bowles posted a 9.10 @145 in the 1/4 using a n/a 7.0l version of this engine when it was in its experimental form.
I remember reading about that, they never even told him what the motor was initially! Ford also built a 7.5 liter version of this engine for off road racing. I don't think anyone realizes that they are looking at the holy grail of modern Ford engines here. A small block that will go up to 460 cubes with good heads, this thing is the modern day Cammer!
a modern "Boss 429" sounds saucy!
it's a 400+ HP motor from the factory.... it can be punched out to 460+ cubes. I think Roush had/has one in N/A form making over 600hp.
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Kraftsman
Member
Count me in, subscribed. What trans are you planning on using? Is the bellhousing bolt pattern the same?
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Sent from my ADR6300 using Tapatalk
Don Bowles posted a 9.10 @145 in the 1/4 using a n/a 7.0l version of this engine when it was in its experimental form.
N/A
Yes I know. What will a bored/stroked/worked 5.0 do in the same application?
06silverbullet
Senior Member
what kinda compression do those motors run?
The biggest I have seen a 5.0 go is 351 cubes and thats with a lot of stroke. The big bore 6.2 is a much better way to start for a big cube build.
iRoush
Roush God
Subscribing! As soon as my dad pulled up with his Raptor, this idea went off in my head.
Kraftsman
Member
9.8:1 is stock for a 6.2
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RED09GT
Equal Opportunity Offender
A cam change alone on these motors is going to be killer. From another site, head flow was suggested as being north of 300cfm on the intake side and 200cfm on the exhaust side, couple this with a bore that will let it breathe and this will be big.
My 393w in my 82 GT had AFR 205's, which flow a similar amount, coupled with a 4.03" bore, and a heavy hydraulic roller valvetrain and a rather mild cam. It made 453rwhp at 5900 rpms. Now take the 6.2 which isn't much smaller (379 cu inches versus 393) and it's valvetrain that has the stability and potential to rev past 8000 rpms. As great as the new 5.0 is, the potential of this motor exceeds it. Hopefully that potential gets realized.
My 393w in my 82 GT had AFR 205's, which flow a similar amount, coupled with a 4.03" bore, and a heavy hydraulic roller valvetrain and a rather mild cam. It made 453rwhp at 5900 rpms. Now take the 6.2 which isn't much smaller (379 cu inches versus 393) and it's valvetrain that has the stability and potential to rev past 8000 rpms. As great as the new 5.0 is, the potential of this motor exceeds it. Hopefully that potential gets realized.
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