What year is your 356?decode your chassis number.
Pick your 356's series and enter the chassis number stamped on the car. We'll tell you what we can confirm — and we're upfront everywhere the historical record runs thin.
How to read a 356 chassis number.
Volkswagen chassis numbers have a model-year digit built right in. Porsche's don't — 356 numbers were assigned in blocks by body style (coupe, cabriolet, roadster), so decoding one to an exact year means matching it against real production records, not doing math on the digits.
Right now we can confirm exact production years for 356 B Cabriolets built 1959-1963, cross-checked against restorer records. Every other series and body style gets an honest series-level estimate — not a guessed year.
Most often it's on the front luggage-floor near the spare tire, or on the ID plate on the firewall. 1962-65 cars also carry a "secret" number under the passenger-side door hinge cover.
| Series | Production | What changed |
|---|---|---|
| Pre-A | 1948-Oct 1955 | Split/bent windscreen; hand-built aluminum bodies through 1950, then steel |
| 356 A | Oct 1955-Sept 1959 | Curved one-piece windshield; four-cam Carrera engine introduced |
| 356 B (T5) | Sept 1959-1961 | Raised bumpers and headlights, wider hood handle |
| 356 B (T6) | 1962-1963 | Twin engine-lid grilles, larger coupe rear window, fuel filler moved to right fender |
| 356 C | 1963-1965 | Four-wheel disc brakes standard; engine range trimmed to 1600 C and 1600 SC |
356 chassis numbers, answered.
Where do I find the chassis number on a Porsche 356?
Look on the front luggage-compartment floor near the spare tire, on the ID plate riveted to the front firewall, or — on 1962-65 cars — stamped under the driver-side door hinge cover. It's a 4-6 digit number, not the 17-digit VIN format later cars use.
Can a 356 chassis number be decoded to an exact year?
Volkswagen chassis numbers have a model-year digit built right in. Porsche's don't — 356 numbers were assigned in blocks by body style (coupe, cabriolet, roadster), so decoding one to an exact year means matching it against real production records, not doing math on the digits.
Which 356s can you confirm an exact year for?
Right now we can confirm exact production years for 356 B Cabriolets built 1959-1963, cross-checked against restorer records. Every other series and body style gets an honest series-level estimate — not a guessed year.
What are the 356 series, and when was each built?
Pre-A ran 1948 to Oct 1955 (split/bent windscreen; hand-built aluminium bodies through 1950, then steel). 356 A ran Oct 1955 to Sept 1959 (curved one-piece windshield; four-cam Carrera engine introduced). 356 B (T5) ran Sept 1959 to 1961 (raised bumpers and headlights, wider hood handle). 356 B (T6) ran 1962-1963 (twin engine-lid grilles, larger coupe rear window, fuel filler moved to the right fender). 356 C ran 1963-1965 (four-wheel disc brakes standard; engine range trimmed to 1600 C and 1600 SC).
What if I need certainty about my 356's year?
The Porsche 356 Registry's own chassis-number archive carries this warning: it should be used for clues, not relied on for certainty. Where the historical record gives a real, cross-checked number range we say so and give you the year. Everywhere else, we give you the series and point you to what would nail down the exact year: your car's factory Kardex record.
Know your 356. Get the right parts.
Once you know your series and year, our vehicle pages have everything that fits — German OE, quality repro, and the parts we make in-house.