I have a 99 GT 4.6 and i am changing the motor to a 99 cobra motor and my question is will the headers off my 4.6 gt fit the cobra motor?, and will the manifolds interchange? and one other question. is the 99 cobra crank and pistons forgen?...THANKS

 

Wrong section budd
Go to the new edge section, they will have that answer for you.
Good luck though.

 

You should swap in a 4.0 V6 torque monster, that's what!