The casting number is located on the engine block, near the top of the block on the passenger side. It is typically a raised number, and it may be covered in grease or dirt.
Step 2: Clean the casting number.
Use a wire brush or a rag to clean the casting number so that you can read it clearly.
Step 3: Identify the first two digits.
The first two digits of the casting number indicate the year that the engine block was cast. For example, a casting number that begins with "65" indicates that the block was cast in 1965.
Step 4: Identify the third digit.
The third digit of the casting number indicates the type of engine that the block was designed for. For example, a casting number that ends in "A" indicates that the block was designed for a 289 cubic inch V8 engine.
Step 5: Identify the fourth digit.
The fourth digit of the casting number indicates the suffix of the engine block. The suffix indicates the specific version of the engine block. For example, a casting number that ends in "C" indicates that the block is a "C" suffix block.
Step 6: Decode the casting number.
Once you have identified the first four digits of the casting number, you can decode it using a casting number decoder. A casting number decoder will tell you the year, type, and suffix of the engine block.
Here is an example of how to decode a casting number:
* Casting number: C5AE-6015-A**
* Year: 1965
* Type: 289 cubic inch V8 engine
* Suffix: C suffix
This casting number indicates that the engine block was cast in 1965, and it was designed for a 289 cubic inch V8 engine. The block is a "C" suffix block.
