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superchevy · 03-07-2004, 01:17 AM

Get the numbers off the rear of the block above the bellhousing on the drivers side...that is the casting number. The numbers on the pass side are the date codes. Then go here http://www.mortec.com/bbc.htm and see what you have.

03-07-2004, 01:17 AM	#2
superchevy Got big-block? Join Date: Jul 2000 Location: Austin, Texas Posts: 2,453	Get the numbers off the rear of the block above the bellhousing on the drivers side...that is the casting number. The numbers on the pass side are the date codes. Then go here http://www.mortec.com/bbc.htm and see what you have.