Ive decided to build a 4.6 so I've got a new set of MMR 2500r pistons that I need to get rid of that are built for a navi motor, they have been coated by MMR come with the upgraded wrist pins. Part number on the pistons is 588000-8, wrist pin part number is 42507-8. I paid $1000 new for all of this ill let it go for $700 plus the ride obo. I also have a navi block and a set of navi heads if anyone is interested.