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Old 01-07-2011, 01:49 PM   #4
BigBlocksRule
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Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
Re: 454 Engine I.D. Question

Head casting numbers are under the valve cover. Block casting is on the ledge on the back of the block where it bolts to the tranny, driver's side. It'll be facing mostly up, if it's clean you might be able to read it with a mirror. The last 3 digits is probably enough...
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