Red 1963 Corvette

1963 Corvette Performance & Specifications

Powertrain, Steering, Brakes, Dimensions, & Suspension

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The 1963 Corvette marked a new direction for America’s sports car, with a striking design, gorgeous rear split-window, and a selection of four capable V8’s. For the performance fan, the 1963 Vette represented a significant leap in ability, and for today’s collector, the same can be said of desirability.

1963 Corvette Powertrain Specifications

Order Code Standard L75 L76 L84
Engine Manufacturing Location Flint, Michigan Flint, Michigan Flint, Michigan Flint, Michigan
Type 90 degree V, Valve-In-Head 90 degree V, Valve-In-Head 90 degree V, Valve-In-Head 90 degree V, Valve-In-Head
Cylinders 8 8 8 8
Displacement (cid) 327 327 327 327
Fuel Induction System Carburetor Carburetor Carburetor Fuel Injection
Horsepower 250 @ 4,400 300 @ 5,000 340 @ 6,000 360 @ 6,000
Torque 350 @ 2,800 360 @ 3,200 344 @ 4,000 352 @ 4,000
Bore x Stroke (in.) 4.00 x 3.25 4.00 x 3.25 4.00 x 3.25 4.00 x 3.25
Compression Ratio 10.5:1 10.5:1 11.25:1 11.25:1
Firing Order 1-8-4-3-6-5-7-2 1-8-7-2-6-5-4-3 1-8-7-2-6-5-4-3 1-8-7-2-6-5-4-3
Cylinder Number System (Left) 1-3-5-7 1-3-5-7 1-3-5-7 1-3-5-7
Cylinder Number System (Right) 2-4-6-8 2-4-6-8 2-4-6-8 2-4-6-8
Recommended Fuel Premium Premium Premium Premium

Manual Transmission / Gear Ratios

Gear Ratios

3 Speed 4-Speed (RPO M20)
(for 250HP and 300HP engines)
4-Speed (RPO M20)
(for 340HP and 360HP engines)
1st Gear 2.47:1 2.54:1 2.20:1
2nd Gear 1.53:1 1.89:1 1.64:1
3rd Gear 1.00:1 1.51:1 1.31:1
4th Gear N.A 1.00:1 1.00:1
Reverse 2.80:1 2.61:1 2.26:1
Clutch
Model & Type Chevrolet, single disk, dry plate, centrifugally assisted
Effective Plate Pressure (lbs) 2300 – 2600
Lining Area (sq. in) 90.7

Powerglide Automatic Transmission (RPO M35) Gear Ratios

Gear Ratios
Drive 1.76 and 1.00:1
Low 1.76:1
Reverse 1.76:1

1963 Corvette Exterior Dimensions

Hard Top Dimensions

1963 Corvette Dimensions - Hard Top
Exterior Dimensions (Hardtop) Interior Dimensions (Hardtop)
Wheelbase: 98.0 Inches Headroom: 36.9 Inches
Overall Length: 175.3 Inches Shoulder Room: 48.2 Inches
Total Body Width: 69.6 Inches Hip Room: 52.4 Inches
Overall Height: 49.3 Inches Leg Room: 41.6 Inches
Front Track Width: 56.3 Inches
Rear Track Width: 57.0 Inches
Min. Ground Clearance 5.0 Inches

Soft Top Dimensions

1963 Corvette Dimensions - Soft Top
Exterior Dimensions (Soft Top) Interior Dimensions (Soft Top)
Wheelbase: 98.0 Inches Headroom: 38.1 Inches
Overall Length: 175.3 Inches Shoulder Room: 48.2 Inches
Total Body Width: 69.6 Inches Hip Room: 52.4 Inches
Overall Height: 49.8 Inches Leg Room: 41.6 Inches
Front Track Width: 56.3 Inches
Rear Track Width: 57.0 Inches
Min. Ground Clearance 5.0 Inches

Coupe Dimensions

1963 Corvette Dimensions - Coupe

Exterior Dimensions (Coupe) Interior Dimensions (Coupe)
Wheelbase: 98.0 Inches Headroom: 37.0 Inches
Overall Length: 175.3 Inches Shoulder Room: 48.2 Inches
Total Body Width: 69.6 Inches Hip Room: 52.4 Inches
Overall Height: 49.3 Inches Leg Room: 41.6 Inches
Front Track Width: 56.3 Inches
Rear Track Width: 57.0 Inches
Min. Ground Clearance 5.0 Inches

Capacities

Capacities
Passenger Capacity 2 – Driver & Passenger
Curb Weight (lbs) 3,037
– Convertible 3,043
– Convertible (with hardtop) 3,015
Interior Passenger Volume (cu. ft)
Interior Trunk Volume (cu. ft)
– Convertible 8.4
– Coupe 10.5
Engine Oil Capacity (qts.): 20 (36 with RPO N03)
– 250HP and 300HP engines 4 (capacity of crankcase less filter – refill)
– 340HP and 360HP engines 5 (capacity of crankcase less filter – refill)
Coolant capacity without heater (qts.) 15.5
Battery: 12 volt, 61AH, Delco-Remy

1963 Corvette Brakes, Wheels, & Suspension Specifications

Suspension – Front

Type and Description:  Independent, each steering knuckle spherically-jointed to frame-hinged upper and lower control arms. Frame-secured coil spring and shock absorber (inside coil spring) attached to each lower control arm. Front end stability achieved with stabilizer bar hinged to frame front crossmember and each lower control arm. Front end dive when braking controlled by mounting angle of upper control arms.

Front Coil Springs
Make & Type Steel Alloy
Coil Design Height (in.) 8.56 x 3.80
Spring Rate (lb. per in.) 260 lb. per in.
Rate at Wheel (lb. per in.) 80.5 lb. per in.
Design Load 1340 lb. @ 8.56 in.
Shock Absorbers
Make & Type Direct, double-acting, hydraulic; freon filled envelope in reservoir
Piston diameter 1.00
Piston travel 5.25
Front Stabilizer Bar
Type Link
Material Hot rolled steel
Diameter 0.6875

Suspension – Back

Type and Description: Full independant with frame-anchored differential. Locus of each wheel established by 3 links: universally-jointed axle drive shaft and adjacent strut, and torque control arm pivoted at frame side rail. Vertical suspension loads taken by shock absorbers and transversely-positioned leaf spring. Built-in camber adjustment at struts.
Rear Leaf Springs
Number of Leaves 9
Material Chrome carbon steel
Length, width, height 46.36 x 2.25 x 2.121
Rate at Wheel (lb. per in.) 80.5 lb. per in.
Design Load 1340 lb. @ 8.56 in.
Shock Absorbers
Make & Type Direct, double acting, hydraulic, freon filled envelope in reservoir
Piston diameter 1.00
Piston travel 5.00
Rear Strut
Material Forged Steel
Diameter 0.75

Brakes

Brake Specs
Type:
– Standard Duo Servo – 4 Wheel Hydraulic
– J50 Powered Brakes
– J65 Sintered Metallic Brakes
Drum diameter, front (in.): 11
Drum diameter, rear (in.): 11
Effective area (sq. in.):
– Standard 185.2
– Sintered Metallic 134.9
– Special Performance 144.9

Wheels & Tires

Wheels & Tires Specs
Wheel Type:
– Standard Short spoke spider, steel
– P48 Ribbed integral casting, aluminum
Wheels, size:
– Standard 15″ x 5.5K
– P48 15″ x 6L
Tire, size:
– Standard 6.70 x 15 — 4 Ply Tubeless
– P91 6.70 x 15 — 4 Ply Blackwall Nylon
– P92 6.70 x 15 — 4 Ply Whitewall Rayon
Inflation (cold)
– Front 24 lbs.
– Rear 24 lbs.

Steering

Steering Specs
Type Semi-reversible, recirculating ball
Make Saginaw
Ratio (Gear) 16.0:1
Wheel Diameter (in.) 16
Turns, Stop to Stop
– Standard 3.4
– Power 2.92
Turning Diameter (curb to curb) 39.4 ft. left — 40.4 ft. right (outside front)

1963 Corvette Performance Results

Performance Results Standard L75 L76 L85
3-Speed Transmission
Performance weight (lbs.) 3335 3340 3350 3350
Pounds/gross horsepower 13.34 11.13 9.85 9.31
Pounds/cu.in. piston displacement 10.20 10.21 10.24 10.24
 Gross horsepower/cu.in. displacement .765 .917 1.040 1.101
 Power displacement (cu.ft./mile) 241.6 241.6 241.6 241.6
Displacement factor (cu.ft./mile) 144.9 144.7 144.2 144.2
 0 – 60 mph (seconds)
 Top Speed (mph)
4-Speed Transmission
 Performance weight (lbs.) 3375 3345 3350 3350
 Pounds/gross horsepower 13.50 11.15 9.85 9.31
 Pounds/cu.in. piston displacement 10.32 10.22 10.24 10.24
 Gross horsepower/cu.in. displacement .764 .917 1.040 1.101
 Power displacement (cu.ft./mile) 241.6 241.6 266.1 266.1
 Displacement factor (cu.ft./mile) 143.0 144.5 158.8 158.8
 0 – 60 mph (seconds) 7.2 5.8
 Top Speed (mph) 130 130
Powerglide Transmission
Performance weight (lbs.) 3375 3360
Pounds/gross horsepower 13.42 11.20
Pounds/cu.in. piston displacement 10.26 10.28
Gross horsepower/cu.in. displacement .765 .917
Power displacement (cu.ft./mile) 241.6 241.6
 Displacement factor (cu.ft./mile) 144.0 143.6
 0 – 60 mph (seconds)
Top Speed (mph)