Decoding Engine, Carburetor, Manifolds

Q: Decoding Engine, Carburetor, Manifolds

I know I had a reference to decode some of these numbers, but I have forgotten if it was a book or website. My engine has ‘YR’ and ‘33202’ stamped just to the left of the top of the water pump, and ’23N108627′ stamped below the water pump. The intake manifold has ‘E220’ cast into it and the exhaust manifold has ‘9796155’ cast into it. The numbers on the carb are 17054905 and just below, 2738. Would someone please tell me what these codes mean. Thanks.

A:
YR ….. This is the specific Engine Usage/Type Code
33202…. This is the Engine Unit Number
23N108627…. This is the partial VIN, unique to the car the engine came from
E220….. This is a Date Code (May 22 ’70 ?)
9796155… This is a Part/Casting Number
17054905…. This is the Usage Code for a Rochester Carb
2738….. This is the Build Date Code (273rd day of 1968 ?)

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