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Aumores info is correct as to specs. I believe that the ratings where a little higher as to hp. 425hp for the 428PI and 475hp for the 427SO. Don't mean to nit pic.
All S/C's had 427SO's. Some single quads. Some dual quads.
Some street cars had 427SO's and many had 428PI's. Mostly dual quads.
If rebuilt properly an FE has good reliability. Especially when you balance and blue print in the rebuild and use quality parts.
Pro of the 427SO. Its the "brass ring" of power plants for the 427 Cobra. The Side Oiler is the "the engine". No if, ands or buts about it.
Con of the 427SO. Real 427SO blocks (not service block or marine) and quality blocks hard to come by. Cost is very high.
Pro of the 428PI. Less expensive and more available. Great torque curve for street use. Also, it is correct for the Cobra, more specifically the street spec Cobra.
Con of the 428PI. Its not a 427SO.
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Last edited by REAL 1; 03-29-2003 at 08:14 PM..
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