item
number
description*

VIN
1Z37L7S419608
The first digit, "1," indicated the Chevrolet division of GM.  The "Z" is the series, Corvette.  The "37" is the body style, 2-door sport coupe.  The fifth digit is the engine, L, correct for an L48 car.  The sixth digit, "7," indicates the model year, 1977.  The "S" is the plant where the car was produced, St. Louis.  The last five digits are a sequence number so this is the 19,608th Corvette made for 1977.

Body Build Date
F15
"F" corresponds to January and "15" is the fifteenth day of the month meaning this Corvette's body build date is January 15th, 1977.

Engine Code
V0106
"V" means the engine was build in the Flint, MI plant.  The "01" is the first month of year and the "06" is the sixth day of the month meaning the engine was assembled on January 6th, 1977.  This is correct as it precedes the build date of the car.

Suffix Code
CLA
This means the motor was intended for a L48 1977 Corvette with an automatic transmission, which is correct for this car.

Engine VIN Stamp
419608
The last 6 digits of the car's VIN, 419608 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 1977 Corvette.

Engine Block Casting Date
L 18 6
"L" is November, "18" is the eighteenth day of the month, and "6" is the last digit of the calendar year so the engine block was cast on November 18th, 1976. 

Intake Manifold Casting Number
346249
The intake manifold is original and correct for a 77 Corvette with an automatic transmission with a 346249 stamping.

Intake Manifold Casting Date
L 15 6
"L" is the month November, "15" is the fifteenth day of the month, and "6" is the last digit of the calendar year, Meaning this intake manifold was casted on November 15th, 1976.

Distributor
1103246
The distributor is original and correct for a 77 Corvette with an automatic transmission with a 1103246 stamping.

Distributor Date Code
6 M 10
The "6" is the last digit of the calendar year, the "M" denotes December, and "10" is the tenth day of the month meaning the distributor was made on December 10th, 1976. This is correct as it predates the assembly date of the engine.

Carburetor
17057204
This carburetor is correct and original for a L48 1977 corvette with an automatic transmission

Carburetor Date Code
3586
"358" is the 358th day from January 1st 1976, and "6" is the last digit of the calendar year meaning this carburetor was made on December 24th, 1976.

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

Passenger  Window
CC
"C" is November and "C" is 1976 so this window is original, made in November of 1976.  This is correct as it predates the build date of the car.

Rear Window
VC
"V" is December and "C" is 1976 so this window is original, made in December of 1976.  This is correct as it predates the build date of the car.

Transmission Main Case Casting Number
8640300
The Main case of the transmission has the correct 8640300 casting number

Transmission Main Case Casting Date
12-76 13
"12" is the month, "76" is the year, and "13" is the day meaning this transmission was cast on December 13th, 1976

Transmission VIN Stamping
419608
The last 6 digits of the car's VIN, 419608 are stamped on the transmission and pictured below, meaning this engine is original to this car.

exterior color code

72
Red

interior color code

722
Red Leather

rpo code
description

1YZ87
Corvette Sport Coupe

A31
Power Windows

C49
Rear Window Defogger

C60
Air Conditioning

D35
Sport Mirrors

J50
Power Brakes

L48
350ci V8 Engine

M40
Automatic Transmission

N37
Tilt and Telescopic Steering Column

N41
Power Steering

QRZ
White Letter Tires

U58
AM-FM Radio, Stereo