Quote Originally Posted by CarGuyOne
I just bought a 429 with a C6 attached. I haven't pulled the manifold or heads yet. How can I determine the year of the engine?
Thanks.
The head casting number is located on the OUTSIDE of the head, along the valve cover mounting rail and between the 3rd and 4th exhaust port. It is alphanumeric and will likely read C9VE-A or D0VE-C or D3VE-A2A, etc. Please let us know what this number is.

The block casting number is located on the side of the block, down low, behind the starter motor and reads vertically. It is alphanumeric and will likely read C9VE-B or D0VE-A or D1VE-A2B, D1VE-6015-AA, etc. Please let us know what this number is.

The actual date codes of these components (block and heads) are further inside the engine, but the numbers requested will tell the most improtant part of the story.

Paul