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K. Wiggins
K. Wiggins, Classic Car Mechanic
Category: Classic Car
Satisfied Customers: 2994
Experience:  ASE Certified Technician, Associates Degree in Automotive Technology, 15+ years in the trade
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I'm trying to make sure we are purchasing a numbers matching

Customer Question

I'm trying to make sure we are purchasing a numbers matching 1969 GTO.. We were told the engine and trans number match the last few numbers from the VIN. Is that correct.
Submitted: 1 year ago.
Category: Classic Car
Expert:  K. Wiggins replied 1 year ago.

Tha'ts correct, it's stamped on a pad on the passenger side front of the block and will be formatted like below.

  • 123456
  • 123456 -Engine Production Number
    (No correlation to the Vehicle VIN)
  • WS -Engine Code
  • 22P100001 -Engine VIN Code
    added late 1967. (2=Pontiac, 2=Model Year, P=Pontiac Assembly Plant, 100001=Last six numbers of the car VIN)

​The illustration HERE shows the location of the pad

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