item
number
description*

VIN
1Z87L8S407186
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 7,196th Corvette made for 1978.

Body Build Date
B28
"B" corresponds to October and "28" is the twenty eighth day of the month meaning this Corvette's body build date is October 28th, 1977.

Engine Block Casting Number
3970010
The engine block has the correct 3970010 casting number for a 1978 Corvette.

Engine Block Casting Date
J 13 7
"J" is October, "13" is the thirteenth day of the month, and "7" is the last digit of the calendar year so the engine block was cast on October 13th, 1977. 

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
J 5 7
"J" is October, "5" is the eleventh day of the month, and "7" is the last digit of the calendar year so the engine block was cast on October 5th, 1977. 

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

Carburetor Date Code
2917
"291" is the day of the year from January 1st, 1977, and "7" is the last digit of the calendar year meaning this carb was made on October 17th, 1977

Left Exhaust Manifold Casting Number
3932461
This exhaust manifold is correct and original for a 1978 corvette with a 3932461 stamping.

Right Exhaust Manifold Casting Number
3932461
This exhaust manifold is correct and original for a 1978 corvette with a 3932461 stamping.

Windshield
AG
"A" is September and "G" is 1977 so this window is original, made in September of 1977.  This is correct as it predates the build date of the car.

Driver's Window
YG
"Y" is October and "G" is 1977 so this window is original, made in October of 1977.  This is correct as it predates the build date of the car.

Passenger  Window
YG
"Y" is October and "G" is 1977 so this window is original, made in October of 1977.  This is correct as it predates the build date of the car.

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

Transmission Main Case Casting Number
8640300
This main case casting number is correct for a 1978 corvette with a 8640300 stamping.

Transmission Main Case Casting Date
5-77 2
"5" denotes the month, "77" is the year, and "2" is the day of the month, meaning this transmission was cast on May 2nd, 1977

Transmission VIN Stamping
407186
The last 6 digits of the car's VIN, 407186, are stamped on the transmission and pictured below, meaning this engine is original to this car.

exterior color code

19
Black

interior color code

192
Black

rpo code
description

1YZ87
Corvette Sport Coupe

A31
Power Windows

C49
Rear Window Defogger

C60
Air Conditioning

D35
Sport Mirrors

MX1
Automatic Transmission

N37
Tilt and Telescopic Steering Column

N90
Aluminum Wheels

QGR
225/70R15 White Letter Tires

U58
AM-FM Radio, Stereo

ZX2
Convenience Group