03-14-2004, 10:52 AM
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Senior Club Cobra Member
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Join Date: Jan 2001
Location: Bloomfield Hills, (Detroit area),
Mi
Cobra Make, Engine: Superformance 156, ex Paxton 351, now a 392 Ford Racing Stroker
Posts: 1,666
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Not Ranked
not exact but perhaps close, i asked this question long ago and was told the difference from a 427 w/ alum heads and a 351 w/ alum heads was 150 pounds. not sure what a 428 weighs +/- a 427, but gotta believe an approximate difference of about 150 pounds there too vs 351 . bill.
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