item
number
description*

VIN
1Z37J3S413870
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 an 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 13,879th Corvette made for 1973.

Body Build Date
C02
"C" corresponds to November and "02" is the second day of the month meaning this Corvette's body build date is November 2nd, 1972.

Engine Code
V0119
"V" means the engine was build in the Flint, MI plant.  The "01" is the first month of year and the "19" is the ninteenth day of the month meaning the engine was assembled on January 19th, 1973.  This is correct as it precedes the build date of the car.

Suffix Code
CLA
This means the motor was intended for a 1973 L48 Corvette with an automatic transmission, which is correct for this car.

Engine VIN Stamp
413870
The last 6 digits of the car's VIN, 413870, 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 the correct 3970010 casting number for a 1973 Corvette.

Engine Block Casting Date
A 18 3
"A" is January, "18" is the eighteeth day of the month, and "3" is the last digit of the calendar year so the engine block was cast on January 18th, 1973. 

Left Exhaust Manifold Casting Number
3932461
The exhaust manifold is original and correct for a Corvette with an automatic transmission with a 3932461 stamping.

Right Exhaust Manifold Casting Number
3932461
The exhaust manifold is original and correct for a Corvette with an automatic transmission with a 3932461 stamping.

Transmission VIN Stamping
413870
The last 6 digits of the car's VIN, 413870, are stamped on the transmission and pictured below, meaning this transmission is original to this car.

Windshield
XU
"X" denotes the month February, and "U" denotes the year 1973, meaning this window was made in February of 1973.

Driver's Window
NU
"N" denotes the month January, and "U" denotes the year 1973, meaning this window was made in January of 1973.

Passenger Window
NU
"N" denotes the month January, and "U" denotes the year 1973, meaning this window was made in January of 1973.

Rear Window
GU
"G" denotes the month April, and "U" denotes the year 1973, meaning this window was made in April of 1973.

exterior color code

910
Classic White

interior color code

404
Black

rpo code
description

19437
Corvette Sport Coupe

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Factory Custom Interior Trim

A31
Power Windows

C60
Air Conditioning

J50
Power Brakes

M40
Turbo Hydramtic Automatic Transmission

N37
Tilt and Telescopic Steering Column

N40
Power Steering

PU9
White Letter Tires

U69
AM-FM Radio