After reading the MT article on the 03 Cobra,it was very interesting,that they went to an iron block and aftermarket conn.rods,in order to use 8 lbs. of boost. I was under the impression that the Cobra 4.6 could handle 8 psi. without many problems. I guess Ford wants to be safe on this one. Reminds me of the bottom end upgrades you got on the old SCJ option on the 428s!!
Upgrades needed for 03 Cobra 4.6
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