Cobra R Head Question..

[04spinbra]

How much Horsepower can you get out of the 2000 Cobra R heads before you don't see any gains? Is there really a cutoff? I'm about to buy some of the 2000 Cobra R heads this weekend!

 

[Ironhand]

There is no limit on power just like the 03-04 Cobra heads.

The bolt pattern on the heads are different and you will require a custom intake. If you have a 5.4 with Cobra R heads then a Cobra R lower will bolt up.

There are no intakes that will fit on a 4.6 with Cobra R heads.

You will also require different intake lash adjusters. The 03-04s cant be used.
You will also have to modify your exhaust manifold flanges due to a different bolt patten. IIRC.

 

[04spinbra]

There is no limit on power just like the 03-04 Cobra heads.

The bolt pattern on the heads are different and you will require a custom intake. If you have a 5.4 with Cobra R heads then a Cobra R lower will bolt up.

There are no intakes that will fit on a 4.6 with Cobra R heads.

You will also require different intake lash adjusters. The 03-04s cant be used.
You will also have to modify your exhaust manifold flanges due to a different bolt patten. IIRC.

Cool! Thanks!! Yeah I'm Gonna do a Built 5.4! :rockon: