Originally Posted by meanmothermagnum
I'M SURE THIS QUESTION HAS BEEN OVER A MILLION TIMES BUT HAS ANYONE PUT 6.2/6.4 HEADS ON A 5.7? IF SO WHAT GAINS IF ANY DID YOU GET AND WHAT ELSE WAS NECESSARY TO MAKE THE SWAP? THANKS!!!


Too many variables in that question.
If for street use the the early 5.7 are more than enough to make power.
IMO late 5.7 6.4 and 6.2 are too big.
A well thought out set of early 5.7 would easily make 500 to 600 hp depending on block combo.
Now if you are talking about forced induction, than that's a completely different animal.
Matt