item
number
description*

VIN
1Z87L8S421786
The first digit, "1," indicated the Chevrolet division of GM.  The "Z" is the series, Corvette.  The "87" is the body style, 2-door sport coupe.  The fifth digit is the engine, L, correct for an L48 car.  The sixth digit, "8," indicates the model year, 1978.  The "S" is the plant where the car was produced, St. Louis.  The last five digits are a sequence number so this is the 21,786th Corvette made for 1978.

Body Build Date
F23
"F" corresponds to February and "23" is the twenty third day of the month meaning this Corvette's body build date is February 23rd, 1978.

Engine Code
V0218
"V" means the engine was build in the Flint, MI plant.  The "02" is the second month of year and the "18" is the eighteenth day of the month meaning the engine was assembled on February 18th, 1978.  This is correct as it precedes the build date of the car.

Suffix Code
CUT
This means the motor was intended for a 1978 Corvette with an automatic, which is correct for this car.

Engine VIN Stamp
421786
The last 6 digits of the car's VIN, 421786, 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 1978 Corvette.

Engine Block Casting Date
B 14 8
"B" is February, "14" is the fourteenth day of the month, and "8" is the last digit of the calendar year so the engine block was cast on February 14th, 1978. 

Intake Manifold Casting Number
346249
This intake manifold is correct and original for a 1978 corvette with a 346249 casting number

Intake Manifold Casting Date
B 11 8
"B" is February, "11" is the eleventh day of the month, and "8" is the last digit of the calendar year so the engine block was cast on February 11th, 1978. 

Distributor
1103353
The distributor is original and correct for a 78 Corvette with a 1103353 stamping.

Distributor Date Code
8 B 10
The "8" is the last digit of the calendar year, the "B" denotes February, and "10" is the tenth day of the month meaning the distributor was made on February 10th, 1978. This is correct as it predates the assembly date of the engine.

Alternator
1102908
This alternator is correct and original for a 78 corvette with A/C with a 1102908 stamping

Alternator Date Code
7 J 12
The "7" is the last digit of the calendar year, the "J" denotes November, and "12" is the twelveth day of the month meaning the distributor was made on November 12th, 1977. This is correct as it predates the assembly date of the engine.

Carburetor
17058204
The carburetor is correct and original for a 78 corvette with a 17058204 stamping.

Windshield
NJ
"N" is January and "J" is 1978 so this window is original, made in January of 1978.  This is correct as it predates the build date of the car.

Driver's Window
NJ
"N" is January and "J" is 1978 so this window is original, made in January of 1978.  This is correct as it predates the build date of the car.

Passenger  Window
NJ
"N" is January and "J" is 1978 so this window is original, made in January of 1978.  This is correct as it predates the build date of the car.

Rear Window
CG
"C" is November and "G" is 1977 so this window is original, made in November of 1977.  This is correct as it predates the build date of the car.

exterior color code

82
Mahogany Metallic

interior color code

59C
Light Doeskin Cloth

rpo code
description

1YZ87
Corvette Sport Coupe

C60
Air Conditioning

D35
Sport Mirrors

MX1
Automatic Transmission

NA5
Standard Emissions

N37
Tilt-Telescopic Steering Column

QBS
255/60R15 White Letter Tires

U58
AM-FM Stereo Radio

U81
Dual Rear Speakers

ZX2
Convenience Group