Chevrolet Corvette Service Repair Manuals

1987 CORVETTE

Except for the addition of roller hydraulic lifters to the Corvette's 350-cid (5.7-liter) V-8, little changed this year.

Horsepower got a boost to 240 thanks to new friction-cutting roller-type valve lifters.
The 1987 Corvettes also had a higher fuel-economy rating.
Joining the option list was an electronic tire-pressure monitor that signaled a dashboard light to warn of low pressure in any tire.
Two four-speed transmissions were available: manual or automatic.
Standard equipment included power steering; power four-wheel disc brakes (with anti-locking); air conditioning; a theft-deterrent system; tinted glass; twin remote-control mirrors; power windows; intermittent wipers; tilt/telescope steering column; and an AM/FM seek/scan radio.
Both the centers and slots of the wheels (unpainted in 1986) were now finished in Argent Gray.
Corvettes colors were
- Silver Metallic
- Medium Gray Metallic
- Medium Blue Metallic
- Yellow
- White
- Black
- Gold Metallic
- Silver Beige Metallic
- Copper Metallic
- Medium Brown Metallic
- Dark Red Metallic
- Bright Red.
Two-tone combinations were
- Silver and Gray
- Gray and Black
- White and Silver
- Silver Beige and Medium Brown
Interior trims came in Blue; Black; Bronze; Graphite; Medium Gray; Red; Saddle; and White.
A removable body-colored roof panel for hatchbacks or body-colored convertible top were standard, along with cloth-upholstered seats.

The serial number [Vehicle Identification Number -- VIN] was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.
The Coupe serial numbers ranged from 1G1YY21*2H5100001 to 1G1YY21*2H5130632
The Convertible serial numbers ranged from 1G1YY31*2H5100001 to 1G1YY31*2H5130632

Position	Character	Description
1	1	US built
2	G	General Motors product
3	1	Chevrolet Motor Division vehicle
4	Y	Type of restraint system
5	Y	Corvette car line series
6	2 or 3	Body style number 2 = Two door hatchback style 07, 08, 77, or 87 3 = Two door convertible style 67
7	1 or 2	1=Manual seat belts 2=Automatic seat belts
8	8	5.7-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
10	H	The model year where 1987
11	5	Bowling Green, KY
12-17	100001 and up	production sequence for coupes and convertibles

Corvette engines have the last six digits of the VIN stamped on the block just ahead of the cylinder head on the right-hand side combined with a three-letter engine code suffix
Also cast into the top rear of the block is a four-symbol code indicating when the engine was built
- The first letter of the date code shows the month the block was cast
- The one or two numbers shows the month
- The last digit shows the year

Engine suffixes:

Code	Engine	Horsepower	Compression	Transmission	Fuel Supply	Extra features
ZJN	L98 350-cid	240-hp V-8	9.5:1	THM automatic	tuned port injection
ZLC	L98 350-cid	240-hp V-8	9.5:1	manual	tuned port injection	engine oil cooler
ZLB	L98 350-cid	240-hp V-8	9.5:1		tuned port injection	for export
ZLA	L98 350-cid	240-hp V-8	9.5:1	THM automatic	tuned port injection

Upholstery Codes

Model	Model No.	Body/Style No.	Body Type	Factory Price	Shipping Weight	Production Total
Coupe	1Y	Y07	2-dr. Hatch Coupe - 2 passenger	$27,999	3216	20,007
Convertible	1Y	Y67	2-dr. Convertible - 2 passenger	$33,172	3279	10,625

Feature	Standard Engine (RPO L98)
Type	V-8, 90-degree Overhead valve
Block	Cast iron block and aluminum cylinder head
Displacement	350 cid (5.7 liters)
Bore & Stroke	4.00" x 3.48"
Compression ratio	9.5:1
Brake horsepower	240 @ 4000
Torque	345 lb-ft @ 3200
Main bearing	five
Valve lifters	hydraulic
Fuel supply	Tuned-port induction (TPI) system

Feature	Coupe	Convertible
Wheelbase	96.2 inches (2.443 m)
Overall length	176.5 inches (4.483 m)
Overall width	71.0 inches (1.803 m)
Overall height	46.4 inches (1.179 m)
Front tread	59.6 inches (1.514 m)
Rear tread	60.4 inches (1.534 m)
Standard Wheel size	16 x 8.5 inches
Standard Tires	P245/50VR-16 or P255/50VR-16 SBR
Steering	rack and pinion (power assisted)
Front suspension	Single fiberglass composite monoleaf transverse spring with unequal-length aluminum control arms and stabilizer bar
Rear suspension	Fully independent five-link system with transverse fiberglass single-leaf springs, aluminum upper/lower trailing links and strut-rod tie-rod assembly
Brakes	Four-wheel power disc
Body construction	Unibody with partial front frame
Fuel tank	20 US Gal (16.7 Imp Gal) (76 liters)

RPO AC1	Power passenger seat	$240
RPO AC3	Power driver seat	$240
RPO AQ9	Leather sports seats	$1025
RPO AR9	Base leather seats	$400
RPO AU3	Power door locks	$190
RPO B2K	Callaway Twin Turbo installed by Callaway Engineering	$19,995
RPO B4P	Radiator boost fan	$75
RPO C2L	Dual removable roof panels for coupe	$915
RPO 24S	Removable roof panels with blue tint for coupe	$615
RPO 64S	Removable roof panels with bronze tint for coupe	$615
RPO C68	Electronic air conditioning control	$150
RPO DL8	Twin remote heated mirrors for convertible	$35
RPO D74	Illuminated driver vanity mirror	$58
RPO D84	Two-tone paint on hatchback	$428
RPO FG3	Delco-Bilstein shock absorbers	$189
RPO G92	Performance axle ratio 3.07:1	$22
RPO KC4	Engine oil cooler	$110
RPO K34	Cruise control	$185
RPO MM4	Four-speed manual transmission	no-cost option
RPO NN5	California emissions requirements	$99
RPO UL5	Radio delete	$256 credit
RPO UM6	AM-FM stereo radio with cassette	$132
RPO UU8	Delco-Bose stereo system	$905
RPO V0l	Heavy-duty radiator	$40
RPO Z51	Performance handling package for hatchback	$795
RPO Z52	Sport handling package	$470
RPO Z6A	Rear window and side mirror defoggers for coupe	$165

1987 Corvette Notes

Introduced: October 9, 1986.
Model-Year Production: 30,632.
Calendar-year production (U.S.): 28,514.
Model-year sales by U.S. dealers: 25,266.
A $19,995 Callaway Twin-Turbo engine package could be ordered through specific Chevrolet dealers as B2K.
Cars that received this package were sent from Bowling Green, Kentucky, to the Callaway factory in Old Lyme, Connecticut, to receive engine modifications and other upgrades.
A total of 184 Callaway Twin-Turbos were built (21 coupes and 63 convertibles).
The 1987 Callaways had 345 hp and 465 lbs.-ft. of torque.
All had manual transmissions and were not certified for sale in the state of California.
For 1987 Callaway Twin-Turbo Corvettes a different engine-coding system was used.
Callaway engines were stamped with the first two symbols indicating model year, followed by three symbols indicating order in the Callaway production sequence, followed by four symbols matching the last four digits of the Chevrolet VIN.