The PI heads, cam, and intake are all different from what the older 4.6-2V motors have. I know that the PI heads have bigger valves, and I think they also reworked the ports and valve angles, but I can't remember the details.
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Strike down the unroadworthy!
2000 GT Atl. Blue: '03 Cobra motor - 465rwhp/473rwtq, T-56 6-speed, full MM TA/PH & tubular K-member suspension, Saleen body, 17" Torq-Thrust II's, M/T ET Street radials, and lots more
'94 Rio Red Cobra: All the bolt-ons, 3.73s
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