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BigBlocksRule · 01-07-2011, 01:49 PM

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...

01-07-2011, 01:49 PM	#4
BigBlocksRule Registered User 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...