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Old 05-20-2003, 12:52 PM
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Question Mopar 360 ID

Hello Everyone!
I'm a new member here and have a question for you all. I've been searching the Knowledge Base here and I've looked in Motors Engine books that a freind of mine has and can't find out the answer.

I've been trying to figure out the stampings on my motor and have gotten stuck. I've figured out that it was cast in 1979, but there are two sets of other numbers that I cannot find any info on.
They are;
Front under the cylinder head stamped: 97 360 6598
Drivers side cast into block: 4179930-360-2
If anyone can help me I would appreciate it very much. I am rebuilding this motor to put into my 66 Cuda.

P.S. The Knowledge Base section of this website is the best I've seen.

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Old 05-20-2003, 06:25 PM
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Are you sure that first number is a 97? I believe it should be either two letters or a letter and a number, the first digit being a year code (9 would be 79) and a letter for the assembly plant. 360 is obviously displacement, the 4 digit number is the assembly date on a 10,000 day Julian calendar. If there are 4 more numbers after 6598, those would be the sequence number, for example 0235 would be the 235th engine assembled.

4179930 360-2 is just a casting number for a 360 block sometime between 1971 and 1989.
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