Originally Posted by 2fst4you
Finally have the money to rebuild my 4.0 and well I'm in there I want to add a few more ponies. Looking at getting a 258 crank and rods. Do I need to get new pistons to keep the quench height favorable? Do I need anything else? Is getting .020-.030 bored over pistons worth it?
I want to maintain 87-89 octane
Thanks for the help!
I want to make power but I don't want to spend 6% more on fuel