I notice that the 2007 and older models are 235hp and the 2008-until models are 310hp. What did they do for the increase? Hopefully its something i can do.
Excuse my ignorance my last sport was motocross and truck stuff is new to me. Never really cared about until i got a truck worth talking about.
That's actually a good question. I've been kicking around the idea of upgrading my '03 4.7, but haven't taken the time to see what the differences are. Hopefully someone knowledgeable will chime in here.
The heads and intake are totally different along with different cam profiles and increased compression. The new 4.7 also uses electronic throttle control.