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The 1988 Chevrolet Corvette

1988 Blue Corvette Coupe

The 1988 Chevrolet Corvette represented the 35th anniversary for Corvette. To celebrate, a 35th anniversay model was made available and 2,050 were sold. This option included white paint with a black roof bow, white leather interior including the steering wheel, white painted wheels and special badging inside and out. This option was only available on coupes. New additions for the 1988 Vette included carpeted door sills, solution dyed carpet and improved ventilation for coupes. A new muffler system was standard on coupes with the 3.07:1 rear axle ratio, it provided an extra 5 horsepower due to its less restrictive flow. The new muffler system was deemed too loud for the convertible and the 2.59:1 rear axle ratio coupes and was not installed. Standard brake rotors were thickened and suspension changes were made to improve control during heavy braking. The Z51 and Z52 options were upgraded to include 17 x 9.5 inch wheels with P275/40ZR-17 tires mounted on them. The Z51 option (only available on coupes) also included a finned power steering cooler, higher spring rates and larger front brake rotors and calipers than 1987.

Production Options and Build Statistics

Total 1988 Corvettes Built - 30,632

Total 1988 Coupes - 20,007
Total 1988 Convertibles - 10,625

Serial Numbers
Coupe1G1YY21x2J5100001 - 1G1YY21x2H5122789
Convertible1G1YY31x2J5100001 - 1G1YY31x2H5122789

The "Vehicle Identification Number" (also VIN or serial number) is stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.

Serial Number Decoder

PositionCharacterDescription
11US built
2GGeneral Motors product
31Chevrolet Motor Division vehicle
4YType of restraint system
5YCorvette
62 or 3Body style number
2 = Two door hatchback style 07, 08, 77, or 87
3 = Two door convertible style 67
71 or 21=Manual seat belts
2=Automatic seat belts
885.7-liter Tuned-Port-Injection Chevrolet or GM of Canada V8
9?A check digit that calculates the characters in the serial number and gives it a single digit code and can be used to verify that the serial number is legitimate
10JThe model year where 1988
115Bowling Green, Kentucky
12-17100001 and upProduction Sequence for Coupes and Convertibles

Engine Serial Number Decoder

1988 Corvette engines have the last six digits of the VIN stamped on the block after the engine number. The date code the engine was manufactured was also cast into the block. The engine serial number includes a production sequence number starting with 0001001 and one of the suffixes below.

CodeEngineHorsepowerCompressionTransmissionFuel SupplyExtra Features
ZMAL98 350-cid240/245-hp V-89.5:1Turbo Hydramatic AutomaticTuned Port Injection
ZMDL98 350-cid240/245-hp V-89.5:1Turbo Hydramatic AutomaticTuned Port InjectionEngine Oil Cooler
ZMCL98 350-cid240/245-hp V-89.5:1ManualTuned Port InjectionEngine Oil Cooler
Callaway (RPO B2K)Chevrolet engine coding was replaced:
First two digits: model year
Next three digits: Callaway sequence number
Last four digits: last four digits of vehicle identification number

Production Options

RPO
Description
Cost
Total
Prod.
%
1YY07Base Coupe$29,489.00 15,382 50.2%
1YY67Base Convertible$34,820.00 7,407 24.2%
AC1Power Passenger Seat$240.00 18,779 61.3%
AC3Power Driver Seat$240.00 22,084 72.1%
AQ9Leather Sport Seats$1,025.00 12,724 41.5%
AR9Base Leather Seats$400.00 9,043 29.5%
B2KCallaway Twin Turbo$25,895.00 124 0.4%
B4PRadiator Boost Fan$75.00 19,035 62.1%
C2LDual Removable Roof Panels$915.00 5,091 16.6%
24SRemovable Roof Panel, blue tint$615.00 8,332 27.2%
64SRemovable Roof Panel, bronze tint$615.00 3,337 10.9%
C68Electronic Air Conditioning$150.00 19,372 63.2%
DL8Twin Remote Heated Mirrors (convert.)$35.00 6,582 21.5%
D74Illuminated Driver Vanity Mirror$58.00 14,249 46.5%
FG3Delco Bilstein Shock Absorbers$189.00 18,437 60.2%
G92Performance Axle Ratio, 3.07:1$22.00 4,497 14.7%
KC4Engine Oil Cooler$110.00 18,877 61.6%
MM44-spd, Manual Trans.$0.00 4,282 14.0%
NN5California Emission Requirements$99.00 3,882 12.7%
UL5Radio DeleteN/A 179 0.6%
UU8Delco Bose Stereo System$773.00 20,304 66.3%
V01Heavy Duty Radiator$40.00 19,271 62.9%
Z0135th Anniversary Package (coupe)$4,795.00 2,050 6.7%
Z51Performance Handling Pkg. (coupe)$1,295.00 1,309 4.3%
Z52Sport Handling Pkg. (coupe)$970.00 16,017 52.3%
Z6ARear Window/Side Mirror Defoggers (coupe)$165.00 14,648 47.8%
AX4European Belt SystemN/A N/A N/A
C49Electric Rear DefoggerN/A N/A N/A
DD9Electric Outside Rear View MirrorsN/A N/A N/A
K05Engine Block HeaterN/A N/A N/A
K34Electric Speed Control w/ ResumeN/A N/A N/A
L98Engine, 5.7L V8, TPIN/A N/A N/A
MX0Auto. Transmission w/ OverdriveN/A N/A N/A
NM5Canadian Export Emission Reg.N/A N/A N/A
NM8Export Emission SystemN/A N/A N/A
QZDP255/50VR16, Steel Belt Radial TiresN/A N/A N/A
T84Right Rule of Road HeadlampsN/A N/A N/A
T89Tail/Stop Lamp Assembly, EuropeanN/A N/A N/A
UJ6Low Tire Pressure Warning SystemN/A N/A N/A
UK1Japanese Radio FrequencyN/A N/A N/A
UL2European Radio FrequencyN/A N/A N/A
UM6Electric Tuned Stereo w/ CassetteN/A N/A N/A
U18Export SpeedometerN/A N/A N/A
VD1European ModificationsN/A N/A N/A
VE1Japanese ModificationsN/A N/A N/A
V70Front Tow Hook - ExportN/A N/A N/A
Z49Canadian Base Equipment GroupN/A N/A N/A
T85Left Rule of Road HeadlampsN/A N/A N/A

Color Options for 1988

Interior options for exterior colors are suggested by Chevrolet. Any combination could be ordered.
RPO
Color
Cost
Soft Top Color
Interior Color
Total
Prod.
%
13Silver Metallic$0.00BK-WBK-G-R-S 385 1.3%
20Medium Blue Metallic$0.00BK-WB-BK 1,148 3.7%
28Dark Blue Metallic$0.00BK-S-WBK-S 1,675 5.5%
35Yellow$0.00BK-WBK-S 578 1.9%
40White$0.00B-S-WB-BK-G-R-S 3,620 11.8%
41Black$0.00BK-S-WBK-G-R-S 3,420 11.2%
66Dark Orange (Pilot)$0.00N/AN/A 5 0.0%
74Dark Red Metallic$0.00BK-S-WBK-S 2,878 9.4%
81Bright Red$0.00BK-S-WBK-GR-R-S 5,340 17.4%
90Gray Metallic$0.00BK-WBK-G 644 2.1%
96Charcoal Metallic$0.00BK-S-WG-S 1,046 3.4%
40/41White/Black$0.00N/AW 2,050 6.7%
Color Codes: B=Blue, BK=Black, C=Cloth, G=Gray, L=Leather, R=Red, S=Saddle, W=White
The last RPOs has two paint colors . This is the two-tone anniversary edition paint.

Interior Colors

RPO
Color
Cost
Base
Sport
Total
Prod.
%
19CBlack Cloth$0.00N/AN/A N/A N/A
60CSaddle Cloth$0.00N/AN/A N/A N/A
113White Leather$0.00N/A2,050 2,050 6.7%
192Black Leather$0.003,0873,747 6,834 22.3%
212Blue Leather$0.00789919 1,708 5.6%
602Saddle Leather$0.001,4491,757 3,206 10.5%
732Red Leather$0.002,4922,913 5,405 17.6%
902Gray Leather$0.001,2261,338 2,564 8.4%


Convertible Top Colors

RPOColorProduction%
N/ABlack3,43132.3%
N/ASaddle1,16511.0%
N/AWhite2,81126.5%


1988 Corvette Specifications

Mechanical Dimensions

FeatureDimensions
Wheelbase96.2 inches (2.443 m)
Overall length176.5 inches (4.483 m)
Overall width71.0 inches (1.803 m)
Overall height46.4 inches (1.179 m)
Front tread59.6 inches (1.514 m)
Rear tread60.4 inches (1.534 m)
Standard Wheel size16 x 8.5 inches
Standard TiresP255/50ZR-16 Goodyear Eagle GT (Z-rated)
Optional TiresP275/40ZR-17
SteeringPower Rack and Pinion
Front suspensionSingle fiberglass composite monoleaf transverse spring with unequal-length aluminum control arms and stabilizer bar
Rear suspensionFully independent five-link system with transverse fiberglass single-leaf springs, aluminum upper/lower trailing links and strut-rod tie-rod assembly
BrakesFour-wheel power disc
Body constructionUnibody with partial front frame
Fuel tank20 US Gal (16.7 Imp Gal) (76 liters)


Engine Specifications

FeatureBase Engine RPO L98
TypeV-8, 90-degree Overhead valve
BlockCast iron block and aluminum cylinder head
Displacement350 cid (5.7 liters)
Bore & Stroke4.00" x 3.48"
Compression ratio9.5:1
Brake horsepower240 @ 4000 (245-hp for hatchbacks using 3.07:1 rear axle due to use of low-restriction mufflers with this option combination only)
Torque345 lb-ft @ 3200
Main bearingFive
Valve liftersHydraulic
Fuel supplyTuned-port induction (TPI) system

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