4.7 vs. 4.0 technical smackdown!!!

[Lextreme II]

http://www.lextreme.com/forums/showthread.php?t=3266
http://www.lextreme.com/forums/showthread.php?t=3265
http://www.lextreme.com/forums/showthread.php?t=3260

 

[lowboost]

why did someone say the tundra 4.7 l is aluminum and then some say its iron block?

also wouldnt 1uzfe pistons fit in the 2uzfe block? as well as crank?

 

[Lextreme II]

http://www.lextreme.com/tech.html