It's in your VIN. Check your title or registration or on the data tag riveted to the driver's door. (The problem with the data tag is that doors get dented and replaced.) It's also on the inner fenders, but hidden.
Anyway, it's 11 digits. The first digit will be a 6, indicating 1966 model year. The second will be one of three letters, indicating the assembly plant. (F = Dearborn, R = San Jose, T = Metuchen N.J.) The third and fourth are numbers indicating body style, which for a convertible will be 08.
The 5th digit is the engine code. K = 289 ci 271 hp 4-bbl solid cam. A = 289 ci 225 hp 4-bbl, hydraulic cam. C = 289 ci 200 hp 2-bbl. T = six cylinder. It's this engine code that makes a '66 V8 a "K code," an "A code," or a "C code."
The last six digits are the car's serial number. Each plant had its own sequence, starting with 100001.
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