1999 Corvette Specifications

All specifications are preliminary and subject to change. Chevrolet Motor Division, June 1998.

Exterior Dimensions
Model Availability
Corvette hardtop, Corvette coupe, Corvette convertible
EPA vehicle class	Two Seaters
Assembly	Bowling Green, Kentucky
Dimensions & capacities (inches/millimeters, unless otherwise noted)
Wheelbase	104.5/2655.5
Length (overall)	179.7/4565.6
Width (overall without mirrors)	73.6 /1869.6
Height (overall)	47.8/1214.1 (coupe) 47.7/1211.5 (convertible) 47.9/1216.7 (hardtop)
Tread -- front	62.0/1575.6
Tread -- rear	62.1/1575.6
Interior Front Dimensions
Headroom	coupe - 37.9/955.0 convertible - 37.6/955.0 hardtop - 37.8/959.5
Legroom	42.7/1085.8
Shoulder room	55.3/1405.4
Hip room	54.2/1377.8
Capacities
Passenger capacity	2
Passenger index (cu. ft./liters)	coupe - 51.4/1459.4 convertible - not applicable hardtop - 51.7/1467.9
Cargo capacity (cu. ft./liters)	coupe - 24.8/704.1 convertible - 13.9/394.7 (top up) 11.2/318.0 (top down) hardtop - 13.3/377.6
Fuel capacity (gal./liters approx.)	19.1/75.7
Curb weight (lbs./kg, est.)	coupe (with manual) - 3230/1465 coupe (with auto) - 3253/1476 convertible (with manual)- 3231/1466 convertible (with auto)- 3254/1476 hardtop (manual only) - 3174/1440
Engine oil (quarts/liters)	6.0/5.6 (with filter)
Engine coolant (quarts/liters)	11.5/10.9 (11.8/11.2 with manual transmission)
Steering
Type	Power-assisted, speed-sensitive, magnetic variable-effort power rack and steering
Ratio (overall)	16.1:1
Turns stop-to-stop	2.32
Turning diameter curb-to-curb (ft./m)	40.0/12.2
Turning diameter wall-to-wall (ft./m)	41.3/12.6

Brakes
Type	Power-assisted, four-wheel vented disc with 4-wheel ABS
	U. S. STANDARD	METRIC
Gross lining, front/rear (without grooves)	22.6/8.7 sq. in.	145.8/56.1 sq. cm.
Effective area, front/rear	22.3/8.7 sq. in.	144/56 sq. cm.
Disc rotor diameter x thickness, front	12.6 x 1.26 in.	302.3 x 1981.2mm
Disc rotor diameter x thickness, rear	11.8 x 1.0 in.	302.3 x 1981.2mm
Total swept area, front/rear	263/158 sq. in.	1696/1018.0 sq. cm.

Engines
Type	5.7 Liter (LS1) V8 SFI
Block	Cast aluminum
Cylinder head	Cast aluminum
Valve configuration	Overhead (OHV) intake manifold
Hydraulic lifters	Yes/Roller
Bore & stroke (in.)	3.90 x 3.62
(mm)	99.0 x 92.0
Cam drive	Chain
Redline (rpm)	6000
Displacement (liters/CID)	5.67/346
Compression ratio	10.1:1
Fuel induction	Sequential Fuel Injection (SFI)
Horsepower/kW @ engine rpm	345 @ 5600/257 kW @ 5600
Torque/N-m (lb.-ft.)	350 @ 4400/475 N-m @ 4400
Exhaust system	Aluminized stainless steel
Tailpipe(s)	4, rear center exit
Ignition system	Coil near plug
Alternator (amps)	50 at idle; 120 maximum
Battery (SAE capacity rating,cca)	600
Recommend fuel	Premium unleaded

Transmissions
Model	Corvette hardtop	Corvette coupe/ Corvette convertible	Corvette coupe/ Corvette convertible
Transmission	6-speed manual (std.)	4-speed elec. automatic with overdrive (std.)	6-Speed Manual (opt.)
Layout	RWD, mounted ahead of rear axle	RWD, mounted ahead of rear axle	RWD, mounted ahead of rear axle
Gear ratios:
1st	2.66	3.06	2.66
2nd	1.78	1.63	1.78
3rd	1.30	1.00	1.30
4th	1.00	0.70	1.00
5th	0.74	-	0.74
6th	0.50	-	0.50
Reverse	2.90	1.91	1.91
Final-drive ratio	3.42	2.73¹	3.42
¹ 3.15 with optional Performance Ratio.

Chassis
Structure/frame	Integral perimeter frame with center backbone/all-welded steel body frame construction
Body material	Fiberglass-reinforced plastic
Suspension -- Front
Type	Independent SLA forged aluminum upper and pressure-cast aluminum lower control arms; forged-aluminum steering knuckle, transverse monoleaf spring and steel stabilizer bar, spindle offset
Stabilizer bar design/diameter (mm)	Link/23.0 (25.4 with hardtop and optional Z51 Handling Package)
Suspension -- Rear
Type	Independent 5-link design with toe and camber adjustment, cast aluminum upper and lower control arms and knuckle, transverse monoleaf spring, steel stabilizer bar and tie rods, tubular u-jointed metal matrix composite driveshafts
Stabilizer bar design type/diameter(mm)	Ball joint link/19.1 (27.1 with hardtop and optional Z51 Handling Package)

Mileage/Performance*
Model	Corvette Coupe, Corvette Convertible, Corvette Hardtop
Transmission Type	4-speed automatic		6-speed manual
Mileage:	mpg	litres/100 km	mpg	litres/100 km
City	17	13.8	18	13.1
Highway	25	9.4	28	8.4
Combined	20	11.8	21	11.2
Estimated cruising range:	mi.	km	mi.	km
City	325	523	344	553
Highway	478	769	544	875
Combined Engineering	382	615	401	645
*Based on 1999 GM engineering fuel economy estimates. 1999 EPA estimates not available at time of publication. The 1999 Corvette hardtop, coupe and convertible EPA estimates are projected to be the same.

Model	Corvette Coupe, Corvette Convertible, Corvette Hardtop
Trailering Information
NOTE: Corvette models are not rated for trailering.
Coefficient of Drag
Coupe	.29
Convertible	.34
Hardtop	.31
Wheels & Tires
Wheel type	Cast-aluminum 5-spoke (standard) Magnesium 5-spoke (optional on coupe and convertible)
Wheel size
-front	17" x 8.5"
-rear	18" x 9.5"
Tire type	Extended Mobility (EMT) Goodyear Eagle F1 high performance
Tire size
-front	P245/45ZR-17
-rear	P275/40ZR-18
Spare size	Not applicable

1999 Corvette Drivetrain Specifications