SlowGreenBULLITT

ok I have a 2001 mustang GT BULLITT(daily driver) with the 4.6L 2v it has a blower on it pushing out 338rwhp with a stock lower engine. Im looking to go over the 400hp mark i know bad things happen to the internals of the stock 4.6l over 400. basically i just need some help on what exactly what i would need to upgrade down low to keep from blowing the **** out of it.

mrtstang

How far past 400 do you want to go? You can go a little past that and still be fine if the tune is very good.

Mustang_NTriangle

Well it is a gamble anything north of 370 rwhp stock pistons and rods don't like boost and high revs. If u have the money for a rainy day then just keep stock and get a smaller pulley like a 3.33 pulley. I am speaking from experience on this subject.

SlowGreenBULLITT

upper 400's eventually 500's down the road.

mrtstang

Well since i don't have forged internals, i can't tell you exactly what you'll need, but i do know it will involve some forged rods and pistons at minimum.

bigbadstang

MMR bottom end and rape it