4.0stang

PLEASE ONLY ANSWER IF YOU KNOW WHAT YOU ARE TALKING ABOUT!!! How much hp are the 03-04 cobra terminators goodup toon COMPLETELY STOCK internals?

primetime5.0

how long do you want it to last, ive seen some make 900+ horse but only for short time

boduke0220

i wouldnt go much over 700 for saftey reasons.

BraMas

Well than you came to the wrong Forum. I'd ask your ? at svt performance. _ _ _
Your not gonna get any real world answers here. Jut a bunch of I wouldn't go over - - - Hp to be safe

livefast1

internals should be good to 1000 but the head bolts start to stretch around 700 ive heard so most people swap out theirs for arp studs.

lasco10

yeah id keeep it under 700 hp

Fobra

700 rwhp is the safe limit, this pistons are what give out... but internet forums are not the best place to find out facts, people will say whatever

massmustang02

I'm going to have to agree with the 700hp range as well.

cammed99gt

i would keep it around the 600rwhp mark.I have seen a lot around that but 700 or 800 is a little high.I have heard that they start to pop around the 800hp level

Aereon

mm ff did an article on a twin screwed twin turbo'd termie on stock internals (only upgrades being to the fuel system, injectors, plugs) and made like 1200rwhp/tq? I know it was over 1k rwhp/rwtq but I can't remember the exact amount.