Thread: 1957 Y-block
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Old 12-18-2014, 09:48 PM
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A lot of the cast engine pieces were date coded as well as having engineering numbers (the main casting numbers) Otherwise, there is no "matching" number to the VIN in 50-60's Fords.

The engineering number usually will signify (such as ECZ) the model year, but there are a number of exceptions to this. Suffix letters also might indicate year, but if there was a mid year change in the part the suffix letter might have changed.

The four digit number found in the parts and engineering numbers indicate what the part is ( 9425 is an intake manifold for instance).
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