amoosenamedhank

hmmmmmmm.... it only has to survive the summer........ Damnit now you're going to have me spinning this thing up... cuz right now shifting at 5,500 rpms sucks big dog ***.

Fobra

well you know, you have to do what your comfortable with, but if it were my car, I would take it to 6 grand, or 6250 without much thought

mntraynum

I wasnt going to just put the stock 5.4 in my car, i was going to rebuild it all forged internals cams 4v heads with p&p work, headers the whole nine yards. then put it in. I have heard of a few mustangs with the 5.4 making serious hp numbers modular mustang racing built a turbo 4v 5.4 mustang turing out 7 sec quarter mile runs. SWEET......

mntraynum

I shift my stock bottom end 4.6 at about 5700rpms it seems to be ok but after about 5500 i think the valves start to float and i dont feel any more power after 5500

mntraynum

ok i take that back its an 8 sec mustang not 7 sec.

MineralGrey

the money your going to spend it would be cheaper to go the 4.6 rebuild route. But hey if you have the doe go for it!

Fobra

^ but then you have still have a 4.6

im in a holding pattern right now after learning about that new 6.2L raptor 2v motor that can be bored to 7.3L... I just wonder how much its going to cost