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Old 05-13-2011, 10:21 AM   #1
BB72CHEVKT
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Join Date: Mar 2007
Location: Hideaway, TX
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72 402 casting number 3999290

I have a virgin block that says hi-perf pass on the back. Would that mean it was only in a car and was not a truck motor?

The heads are 6272292 and date 1272.
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Last edited by BB72CHEVKT; 05-13-2011 at 10:28 AM.
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