2003 Mustang Mach 1 4.6L Internals Question

ahren · 07-02-2009

I just got a 03 Mah 1. I have not been able to clearly determine if the internals on the 03 4.6L 32 Valve motor are the same as the SVT Cobra minus the super charger. Does any one know if they are rated the same or are the same quality of parts? I am guessing the compression is different but are the connecting rods the same, crank, heads and so on. I am finding little bits and pieces but do not know what is true and what is not. The only thing I know for sure is it is all aluminum. Can anyone point me in a direction to a factual site or information on the internals of the motor. I would really like to know. Thank you,
Ahren

johnr2001 · 07-02-2009

the only forged internal part on a mach is the crank if you got a 5 speed. autos are not forged crank. the motor is a lot different then the cobra motor. its still a great motor though. trust me been doing a lot of research on machs the past few days.

DarkClassic · 07-02-2009

Quote:

Originally Posted by johnr2001

the only forged internal part on a mach is the crank if you got a 5 speed. autos are not forged crank. the motor is a lot different then the cobra motor. its still a great motor though. trust me been doing a lot of research on machs the past few days.

He's right also the Mach 1 has a higher compression ration of 10.1:1 and its own custom cam set up.

ahren · 07-03-2009

Thank you. Do you know the HP rating of the factory Mach motor. My old 02 GT was rated to about 400 max. Have a great day,

Ahren

mell0 · 07-04-2009

what the machs have from factory or what they can handle?

gilomach · 07-04-2009

280 to 290 at the wheel,bone stock,if it had been well keep.

2Manystangs · 07-04-2009

My tuner has a Mach, it's definitely torqueier than the cobra motor, mainly from the better rear end and transmission gear set and the fact that 6-8 years of engineering the dohc Ford had the heads/intake and everything finally sorted out..another plus is they have the new knock sensors that makes them easier to tune, as far as internals, I think they are pretty much the same as the older Cobras...this car was kinda an afterthought as they wanted something between GT and Cobra trim levels

ahren · 07-05-2009

I was wondering what they can handle? Thanks for the feedback,

Ahren

ahren · 07-05-2009

Also it being 6 years old, it only has 30k on it and seems to have been very well maintained.

98BlackGT · 07-05-2009

The stock Mach 1 motor can handle around 450-465rwhp N/A or using a power adder, like a supercharger or nitrous. Anything above that power level, and it's going to require forging the bottom end. No slight intended to this forum, but if you want in depth answers to your Mach 1 questions, you need to visit: 2003-2004 Ford Mustang Mach 1 Owner's Club - Mustang Mach 1 Parts & Accessories

ahren · 07-07-2009

Thank you for the link. That was what I have been looking for. Have a great day,

Ahren