The basic motor is the same. Do some searching for this. Here are some titles that came up....
SRT4/GT differences
srt 4 vs pt
PT GT VS SRT4
Most of this has been covered many times. In answer to your other (unasked) question, the PT is heavier, and has more restrictive intake and exhaust. That's why The SRT is faster. It's also less aerodynamic, but that shouldn't affect 1/8 mile times that much.
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2004 Dark Plum Base with windows tinted, cabin filter, silencers removed, fog lights, 18\'s, all Red taillights, Blaine\'s struts, modesty cover, color-matched center dash, 06 rear bumper
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