Importance of matching numbers?, Chassis, engine, and transaxle zerial numbers Options

[rtmchale2]

I'm curious to get the 914 communities thoughts on how important to resell value it is to keep chassis, engine, and transaxle numbers matching as the car rolled off the factory line. I purchased a project 1973 914, back story suggests all numbers are matching. Current engine is a 1.7L, if I had a chance I would consider putting in a 2.0L, but only if that does decrease value on factory restoration project.

I gather from going through the forums that in doing a factory restoration project, that the project will have better value at the end in sticking with factory options for the car as close as possible. Or is that all just made up and at the end of the day the quality of the restoration will have a bigger impact to future value?

Curious to get the communities thoughts on this.

[davep]

That invoice is a wonderful document, and a superb find.
The CoA or PPS from PCNA is not the greatest of documents, and generally has a few errors or omissions. The factory data that I have access to does not include the transmission #, and thus the CoA will generally not have the trans # either. In fact, when I see a trans # on a CoA or PPS I wonder where they got that information from.
The country code is also a bit tricky since at one time the code C13 was used for California, New York and possibly Puerto Rico; at some point C03 became California and C13 became Finland. Someone at PCNA did not realize that C13 had changed definition and thus a lot of early 914 & 914/6 were said to have Finland equipment. Many other countries also had changing codes, so there are challenges to keep up with the changes.
The data I get has the engine serial # and it is up to me to determine the engine type from the model # or from the range near the VIN in my database.