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raveer2000 · 01-22-2010, 08:41 AM

333882.....74-80...350/400......76cc chambers

3998997....78-84...305/350......76cc chambers

This is the best site I have found for looking up casting numbers
http://www.mortec.com/castnum.htm

01-22-2010, 08:41 AM	#2
raveer2000 Registered User Join Date: Dec 2009 Location: South MS Posts: 90	Re: head # ? 333882.....74-80...350/400......76cc chambers 3998997....78-84...305/350......76cc chambers This is the best site I have found for looking up casting numbers http://www.mortec.com/castnum.htm __________________ 1972 K5 CST. Work in progress. 408CI 1980 K10