4.6 3V to 4V Heads

[MaxDestruction]

I have 2008 GT with 4.6 3V, what is recommended upgrade heads for increased performance? I heard 4V heads really wake these cars up. Thanks!

 

[klaw]

Forced induction really wakes these cars up. I don't see alot of 3V to 4V head swaps.

 

[SpartaPerformance]

4V heads wont work, you need to swap the pistons let alone a whole host of other issues. Get a supercharger!