See also: 1957 Imperial Body-Plate Decoding Tips
This is the DATA plate info for my 58 Ghia. Serial #LY10033.
It seems pretty straight-forward compared to the decoding info (1957 Imperial Body-Plate Decoding Tips) given by Philippe Courant concerning 1957 Imperials:
Except Model 576 - is this a limo or the hardtop kit car? Special color Z seems appropriate. The date, could this be February the 8th? Should this be the scheduled date of the kit car or the completed limo? Nothing else looks too weird to me. Any comments??
Answer from Philippe:
I haven't found anywhere in literature about the # model : the "Standard Catalog of Chrysler" and others books say it's not available or not provided!
However, I have seen some '57 data plates (hope that it's the same # in 58) and I've verify some numbers. Perhaps other 57 (58) owners could help me or confirm these codes. I mention that this code is on the data (right upper radiator frame) plate and below the letters MDL.
I'm sure of the following codes:
|179||4 door Hardtop||IM1-1||(Base model)|
|289||4 door Hardtop||IMI-2||(Crown)|
|283||2 door Convertible.||IM1-2||(Crown)|
|285||4 door Sedan||IMI-2||(Crown)|
|495||4 door Sedan||IM1-4||(LeBaron)|
So I could perhaps assert the following about Imperial numbers:
|5||MIGHT be Crown Imperial Ghia (IMI-5 series?)|
Note also there's no IMI-3 series, although I've seen on some literature that Crown convertibles were the IM1-3 series.
Why is there a 7? Because the original body (2 dr/HT) came from an IMI-1 series, fact approved in the book Chrysler & Imperial 1946-1975, The Classic Postwar Years, by Richard Langworth: Chrysler sent 2 dr/HT bodies and not 2dr/HT Crown as you could see on page 200 : no "crown" above Imperial script.
(You're correct that your Ghia's original body was a coupe)
It'll be helpful if 57/58 owners could confirm these codes : send me the # MDL for
|???||Sedan & 2dr H/T||IM1-1|
|???||2 Dr/Ht Crown||IM1-2|
|???||4 Dr/Ht LeBaron.||IM1-4|
About the shedule date, I believe it's when the body (2dr/HT) left the factory as the serial number seems to fit the month (February) : my car (9909) was sheduled 01/18, a friend has a 16022 # sheduled for 03/14. You're in the middle!
From Philippe Courant firstname.lastname@example.org, '57 Crown convertible ; PAU (France)
I've seen the '60 Swiss plate (Dietmar's car - See 1960 Imperial Body-Plate Decoding Tips), I've performed some research to "find the key". At this time, I've gotten poor results as I only have the paint & model codes. I've the options code like the 57 plate (i.e 339 = rear window deffoger) but I couldn't match them with the " letter & number " plate. But I'll try again!
During this research, I've found the (Chrysler) '58 code which wasn't the same as '57. As the decoding of the data plate is nearly the same, here are the options codes (remember that Imperial only codes, such as Flite sweep deck lid or radio are missing). I've also removed the Chrysler-only codes, such as Chrysler radio and EFI fuel induction:
|303||6 way power seat ($ 101.90)|
|304||power windows ($ 107.60)|
|327||rear shelf radio speaker, H/T only, ($ 15.10)|
|334||power radio antenna ($ 25.80)|
|341||A/C, trunk installation ($ 540.10)|
|342||A/C, Deluxe Dual ($ 688.60)|
|345||Custom Conditionaire heater ($ 93.30)|
|347||Instant Heat heater (gasoline) $ 158.45)|
|359||crankcase vent cleaner (export only)|
|381||front license plate frame ($ ?) ; don't know if it's an Imperial option|
|394||rear window defogger, (NA conv.) $ 20.85|
|397||Auto-Pilot ($ 88.10)|
|399||Sure Grip differential ($ 51.70)|
|401||manual outside mirror, left hand ($ ?)|
|402||remote control outside mirror, left hand ($ 13.80)|
|403||manual outside mirror, right hand ($ ?)|
|405||vanity mirror ($ ?)|
|467||Solex tinted glass ($ 15.90)|
|469||Shaded backlight, H/T only, ($ 26.90) ; don't know if it's an Imperial option.|
|481||rear quarter stone shields ($ ?)|
|553||3.31 to 1 axle ratio ; ; don't know if it's an Imperial option|
|578||generator 30 amp (# 1842601)|
First letter indicates upper color, second letter lower color and third letter insert color (Not Applicable on Imperial)
|Air Force Blue Poly|
|Cypress Green Poly|
|Mandarin Jade Poly|
|Spruce Green Poly|
|Winchester Gray Poly|
|Garnet Maroon Poly|