Vehicle Description
item number description* VIN 1Z37J3S423009 The first digit, "1,"
indicated the Chevrolet division of GM. The "Z" is the series,
Corvette. The "37" is the body style, sport coupe. The fifth digit
is the engine, J, correct for a L48 car. The sixth digit, "3,"
indicates the model year, 1973. The "S" is the plant where the car
was produced, St. Louis. The last five digits are a sequence number
so this is the 23,009th Corvette made for 1973. Body Build Date J10
"J" corresponds to June, and the "10" is the tenth day of the month
meaning this Corvette's body build date is June 10th, 1973. Engine
Code V0501 "V" means the engine was build in the Flint, MI plant.
The "05" is the fifth month of year and the "01" is the first day
of the month meaning the engine was assembled on May 1st, 1973.
This is correct as it precedes the build date of the car. Suffix
Code CLA This means the motor was intended for an L48 Corvette with
an automatic transmission, which is correct for this car. Engine
VIN Stamping 423009 The last 6 digits of the car's VIN, 423009, are
stamped on the engine pad and pictured below meaning this engine is
original to this car. Engine Block Casting Number 3970010 The
engine block has a correct 3790010 casting number a small block
1973 Corvette. Engine Block Casting Date D 26 3 "D" is April, "26"
is the twenty-sixth day of the month, and the "3" is the last digit
of the calendar year so the engine block was cast on April 26th,
1973. Which is correct as it predates the assembly date of the
engine. Intake Manifold Casting Number 3997771 The intake manifold
has the correct 3997771 casting number for a 1973 Corvette Intake
Manifold Casting Date D 21 3 "D" is April, "21" is the twenty first
day of the month, and "3" is the last digit of the calendar year so
the intake manifold was cast on April 21st, 1973. Transmission
73-CK The "73" is the model year, 1973. The "C" means the
transmission was made for a Chevrolet vehicle, and the "K" means is
was intended for a Corvette with a 350ci engine, which is correct
for this car. Transmission Date Code 489 The assembly date code for
the 1973 model year starts with the first day of the calendar year
in 1972 and continues through the calendar year in 1973. This means
"489" is the 489th day starting with January 1, 1972, which
indicates the transmission was assembled on May 4th, 1973. Driver's
Window XU The "X" is February and the "U" is 1973 so this window is
original, made in February of 1973. This is correct as it predates
the build date of the car. Passenger Window GU The "G" is April and
the "U" is 1973 so this window is original, made in April of 1973.
This is correct as it predates the build date of the car. Rear
Window NY The "N" is January and the "Y" is 1972 so this window is
original, made in January of 1972. This is correct as it predates
the build date of the car.
exterior color code 910 Classic White interior color code 418 Dark
Saddle
rpo code description 1YZ37 Corvette Sport Coupe -- Factory Custom
Interior Trim C60 Air Conditioning J50 Power Brakes L48 350ci V8
Engine M40 Turbo Hydramtic Automatic Transmission N40 Power
Steering ORZ White Letter Tires U69 AM-FM Radio
