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Numbers Matching

7/20/2020

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Typically when a PORSCHE enthusiast says his car is "numbers matching, he means that his car has it's original engine, transmission, paint color and interior color scheme. That is the information found on a factory Kardex, and Miss April passes with flying colors- they all match.  The completion date for Miss April was February 16, 1965 as shown on the Kardex below.  
But lets dig deeper....
Back in the 50's and 60's, many German manufacturers had a quality control system of which part was to stamp the month & year on the device.  Sometimes it was a direct stamp of month and year, sometimes a date was "coded" but it still represented the date of manufacture.  If there were ever problems found with the parts they would know when it was made, and solutions would be implemented.
I wrote an article about these manufacturing date codes, and you can find it on this website.  Here is the link, but before clicking, read on for more information on "numbers matching" specific to Miss April.
Date codes found on a car will all be before it left the PORSCHE factory (obviously).  The time between the manufacturers date (code) stamp and the car leaving the factory varies quite a bit, but anytime from the same month to well in advance is very normal.  In a nutshell "numbers matching" for date (code) stamps, means that the stampings are in concert with the date the car was manufactured.  It does not mean all numbers are the same, but that the stampings are logical to the production of that particular car.
Below are photos and descriptions of some of the date (code) stamps on Miss April.  There are more to document, I haven't gotten to all of them yet.  As example, the starter motor has not yet been removed for restoration/cleanup, so I don't know the date (code) stamp--- yet.  I can think of about 6 more places to check-  can you?
Enjoy the photos!
​
  • (1) Coil- 501 (January 1965)
  • (1) Distributor- 412 (December 1964)
  • (1) Yellow Wire Bosch Condenser- 434 (34th week of 1964)
  • (2) Carburetors- both 10/64 
  • (2) Air Filter Housings 1/65
  • (1) ​Oil temperature sender- 1/65
  • (4) Gauges and clock are 9/64
  • (1) ​Voltage Regulator 410 (October 1964)
  • (2) Date code on both horns is 501 (January 1965)
  • (2) Headlights are both headlights are A45 (45th week of 1964)
  • (5) All wheels 11/64
  • (4) Hub Caps- 2/64
  • (1) Blaupunkt Radio- "V" serial number correct for 64-65
  • (1) Gas Tank- FR65 (February '65)
  • (1) Fuel Sender 10/64
  • (2) Air Diverter Valves- A5 (Possibly January 65)
  • (2) Window Winders 11/64
  • (2) Fan Belts [engine & tool kit] 5/01 (January '65)- Not original- made by me.
  • (1) Windshield Wiper Motor 11/64 (blurry photo with it still installed)
  • (34) Total so far.
Be sure to click on "Previous" at the page bottom to see lots of previous Blog pages!
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    At bottom of page, click on "previous" to see more- 13 pages of info.

  • Home
  • Exterior
  • Engine & Trans
  • Interior
  • Underside, Steering & Brakes
  • Accessories
  • Documents
  • Tool Kit
  • Events
  • Misc.
    • Misc. Stuff
    • Electrical Diagram
    • In The End
    • Typ 64
    • Willhoit-Leno 356
    • Million Mile 356
    • N. C. Museum of Art
  • Vintage Photos
  • Original vs Repro
    • Original vs Repro
    • Original Porsche Crests
    • Original Interior Door Handles
    • Original Ashtray
    • Original Durant Mirror
    • Original 356 C Spare Tire Straps
    • Original 356 C Bumper Guards
    • Original Reverse Light
    • Generator/Fan Belts
  • Our Porsche Journey
  • Contact Us
  • TRANS OCEAN MOTORS
  • Blog
  • Classifieds
  • Made By Hand