item
number
description*

VIN
1Z8748S426107
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, 4, correct for an L82 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 26,107th Corvette made for 1978.

Body Build Date
I10
"I" corresponds to May and "10" is the tenth day of the month meaning this Corvette's body build date is May 10th, 1978.

Engine Code
V0504
"V" means the engine was build in the Flint, MI plant.  The "05" is the fifth month of year and the "04" is the fourth day of the month meaning the engine was assembled on May 4th, 1978.  This is correct as it precedes the build date of the car.

Suffix Code
CMR
This means the motor was intended for a 1979 L82 Corvette with a manual transmission, which is correct for this car.

Engine VIN Stamp
426107
The last 6 digits of the car's VIN, 426107, 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
D 27 8
"D" is April, "27" is the twenty seventh day of the month, and "8" is the last digit of the calendar year so the engine block was cast on April 27th, 1978. 

Intake Manifold Casting Number
458520
This intake manifold has the correct 458520 casting for a 220hp L82 corvette. This intake was only used on 78 L82s.

Distributor
1110291
The distributor is original and correct for an L82 Corvette with a manual transmission with a 1110291 stamping.

Distributor Date Code
8 B 7
The "8" is the last digit of the calendar year, the "B" denotes February, and "7" is the seventh day of the month meaning the distributor was made on February 7th, 1978. This is correct as it predates the assembly date of the engine.

Transmission Casting Number
13-04-065-903
The main case of the transmission has a correct 1304065903 casting number.

Transmission Tail Housing Casting Number
13-04-066-903
The tail housing of the transmission has a correct 1304066903 casting number.

Transmission Side Cover Casting Number
13-04-097-901
The side cover of the transmission has a correct 1304097901 casting number.

Transmission Casting Date
1-10-78
The "1" is the first month of the year, the "10" is the tenth day of the month, and the "78" is the year so this transmission main case was cast on January 10th, 1978. this is correct as it predates he assembly of the transmission.

Transmission Date Code
WA3082
"W" denotes the plant, Warner. "A" is the month January, "30" is the thirtyth day of the month, "8" is the last digit of the calendar year, and lastly "2" denotes the shift the transmission was made in. Meaning this transmission is correct and original, made in the second shift of January 30th, 1978.

Transmission VIN Stamping
426107
The last 6 digits of the car's VIN, 426107, are stamped on the main case of the transmission and pictured below meaning this transmission is original to this car.

Clutch Housing
464697
The clutch housing has the correct number 464697 stamping on the casing.

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

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

Driver's T-Top
JJ
"J" is May and "J" is 1978 so this window is original, made in May of 1978.  This is correct as it predates the build date of the car.

Passenger T-Top
JJ
"J" is May and "J" is 1978 so this window is original, made in May of 1978.  This is correct as it predates the build date of the car.

Rear Window
XJ
"X" is February and "J" is 1978 so this window is original, made in February of 1978.  This is correct as it predates the build date of the car.

exterior color code

13
Silver

7
Dark Gray

interior color code

722
Red Leather

rpo code
description

1YZ87
Corvette Sport Coupe

A31
Power Windows

CC1
Removable Glass Roof Panels

C49
Rear Window Defogger

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

YJ8
Aluminum Wheels