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408W or 427W
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09-26-2011, 07:04 PM
vector1
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Join Date: Dec 2004
Location: Kansas City, KS
Cobra Make, Engine: jbl
Posts: 2,291
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i've weighed a factory block at 163#, and i've weighed a fms 4" bore block at 205#. i'm guessing the weight difference is closer to 40#.
vector1
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