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Disc Brakes for the Corvette Stingray

The final performance frontier

1965 Corvette Stingray
Year - 1965 1965 is an important year for Corvette. A long desired and needed upgrade - disc brakes - became standard equipment. The good news is that they appeared on all four corners, not just the front as was common practice of the day. Racers were particularly happy with this latest development as they had long been suffering with drum brakes. Although special sintered metallic linings had been available, fade under racing conditions was still a problem. Jaguar had been offering four wheel disc brakes on their more expensive E-Type and it wouldn't do for the Corvette Stingray to be playing second in any area. The unloved drum brakes were still available as a deletion credit (RPO J61, -$64.50) and 316 1965 Corvette Stingrays were so equipped.

New Kid In Town: Big Block Debut

1965 Chevrolet Corvette Stingray 396 engine Ad introducing the 396 motor
1965 Chevrolet Corvette Stingray Big Block Hood
1965 Corvette Stingray big block hood A new Corvette era was ushered in when a leading edge class of engine, fondly known as the "Big Block" was introduced late in the 1965 model year. At the time a huge horsepower race was taking place industry wide and the 396 cu. in. Turbo-Jet was the Corvette's ticket to the party. Rated at 425 hp, it furthered the Corvettes' Bad-Boy reputation. It also represented the first time a Corvette motor was rated at over 400 hp.

A new hood was required to clear the massive motor and a handsome new "bubble hood" design (above and left) was introduced. Below: Functional vents in the side nicely broke up the area. Indications are that due to supply problems at the time, a number of small block Corvettes left the factory with the big block hood.

1965 Corvette Stingray big block hood
Most of the horsepower advantage in the new engine could be found in the design of the heads which were nicknamed "porcupine heads", a reference to the way the valves were located at odd angles similar to the quills on a porcupine. The entire big block Corvette was thus sometimes known as the "fiberglass porcupine".

The physically much bigger engine required an enhanced cooling system. There was another drawback; approximately 150 lbs. of added weight, all of it on the front wheels. The weight distribution changed to 51% front / 49% rear, a handling disadvantage compared to the better balanced small block alternative.

1965 Corvette Stingray 396 signal
396 side emblems signified new respect for impromptu Grand Prix stop light contestants.

1965 Corvette StingRay For Sale

1965 Factory Air Coupe
Price: $38,000 (Trades Considered)
Exterior: Black
Interior: Black
Miles: 0
Location: Napoleon, Ohio

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1965 Corvette Factory Air Coupe, 327-300 hp, 4 speed, numbers match. Also has factory original body/trim tag which shows the original colors of Tuxedo Black with Black interior (more)

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1965 Corvette: Fuel Injection Swan Song

1965 Corvette Stingray fuel injection insignia
1965 fuel injected Corvette Stingray engine A close examination of the specifications and the options list reveals an interesting fact that makes the 1965 Stingray particularly interesting to car collectors. 1965 was both the first year for all wheel disc brakes and the last year for the fuel injected engine. The two magic performance features would not appear together until 17 years later in the 1982 Corvette. In 1965, fuel injection cost an extra $538.00, adding over 13% to the price of a convertible. The 396 cu. in. motor added only $292.70 to the bottom line yet was rated at 425 hp; 50 more than the fuelie. With the fuel injection system's reputation for complexity and maintenance requirements well known, the days were numbered for the option that first shook the automotive high performance world in 1957.
1965 Chevrolet Corvette Stingray fuel injected engine 1965 Chevrolet Corvette Stingray fuel injected engine David Kimble cutaway

1965 Corvette Specs

Body Specs

Wheelbase 98.00 inches
Overhand (Front) 31.9 inches
Overhang (Rear) 45.2 inches
Front Track 56.8 inches
Rear Track 57.6 inches
Length 175.1 inches
Front Fender Width 69.6 inches (Maximum)
Rear Fender Width 67.3 inches
Height 49.6 inches (Coupe)
49.8 inches (Soft, Hard Top)
Hood (at Rear) to Ground 34.8 inches
Rocker Panel to Ground (Front) 8.0 inches
Rocker Panel to Ground (Rear) 8.0 inches
Bottom of Door to Ground (Open) 13.5 inches
Bottom of Door to Ground (Closed) 12.5 inches
Windshield Slope Angle 56.5°
Body Zero to Ground (Front) 7.7 inches
Body Zero to Ground (Rear) 7.7 inches
Headlamp to Ground 24.36 inches
Tail Lamp to Ground 21.76 inches
Hood Length at Centerline 46.7 inches
Body Upper Structure Length at Centerline Coupe: 77.9 inches
Soft Top: 66.8 inches
Hardtop: 69.2 inches
Front Bumper to Ground 18.0 inches
Rear Bumper to Ground 16.6 inches
Oil Pan to Ground 6.0 inches
Front Suspension to Ground 8.0 inches
Flywheel Housing to Ground 5.9 inches
Exhaust System to Ground 5.0 inches
Rear Axle Differential to Ground 7.8 inches
Spare Tire Well to Ground 6.1 inches
Minimum Running Ground Clearance 5.0 inches
Windshield Glass Area 789.7 inches
Finish (paint type) Lacquer
Turning Diameter - Outside Front 41.6 feet wall - wall
39.9 feet curb - curb
Turning Diameter - Inside Rear 25.6 feet wall - wall
25.6 feet curb - curb
Steering gear ratio 16:1
Steering Wheel Turns Manual: 3.4
Power: 2.92
Power Steering Fluid Capacity 2.3 Pints
Steering Wheel Type Deep Dish
Steering Wheel Diameter 16.0 inches
Tire Size 7.75-15 4 Ply Rating
Recommended Tire Inflation 24 psi, All Wheels
Wheels, Regular Production Size: 15 x 5.5
Attachment to Hub: Five Hex nuts
Wheels, Quick Take-Off, RPO P48 Size: 15 x 6
Cast Aluminum
Method of Retention: Adapter and Lock Nut
Three Speed Transmission 1st Gear 2.58:1
2nd Gear 1.48:1
3rd Gear 1.00:1
Reverse Gear 2.58:1
Automatic (Powerglide) Transmission Drive: 1.76:1 & 1:1
Low and Reverse: 1.76:1
Lubricant Capacity 3 Quarts
Four Speed Transmission
(Standard, L75 engines)
1st Gear 2.56:1
2nd Gear 1.91:1
3rd Gear 1.48:1
4th Gear 1.00:1
Reverse Gear 2.64:1
Close Ratio
Four Speed Transmission
(L76, L78, L79, L84 engines)
1st Gear 2.20:1
2nd Gear 1.64:1
3rd Gear 1.28:1
4th Gear 1.00:1
Reverse Gear 2.27:1
Transmission Lubricant Type Military MIL-L-2105-B
SAE 80
Lubricant Capacity Three Speed: 2 Quarts
Four Speed: 2.5 Quarts
Differential Lubricant Type Military MIL-L-2105-B
SAE 80
Differential Lubricant Capacity 3.7 pints
Axle Ratio 3.08:1 (RPO G91 Four Speed, standard, L75 Engine)
Optional: 3.36:1, 3.55:1, 3.70:1, 4.11:1 and 4.56:1
Transmission Synchromesh Three Speed: 2nd and 3rd Gears
Four Speed: All Four Gears
Standard Fuel Tank Capacity 20 Gallons


Special Performance Equipment

Front and Rear Suspension Equipment
RPO F40

Fuel Tank Capacity
(RPO N03, coupe only)
36.5 Gallons
Shock Absorbers Piston Travel
(Unassembled)
5.00 inches
Stabilizer Bar Diameter .940 inches
Shock Absorber Piston Diameter Front: 1.00; Rear: 1.375
Front Suspension Spring Height: 8.56 inches; ID: 3.80 inches
Length: 100.16 Inches; .680 inch Diameter
OD: 5.160 inches; Free Height: 10.842 inches
Working: 8.56 inches @ 1,255 lb.
Rear Suspension Spring 7 Leaves; Design Load - camber: 1,325 lb. @ .290
Stabilizer Bar Steel, .94 Inch Diameter


Weight

250 Horsepower Engine, Three Speed Transmission
Model 19467 Convertible Front: 1,520; Design: 1,600; Shipping*: 1,520 lb.
Rear: 1,625; Design: 1,845; Shipping*: 1,465 lb.
Total: 3,145; Design: 3,445; Shipping*: 2,985 lb.
Model 19437 Sport Coupe Front: 1,545; Design: 1,625; Shipping*: 1,550 lb.
Rear: 1,590; Design: 1,810; Shipping*: 1,430 lb.
Total: 3,135; Design: 3,435; Shipping*: 2,980 lb.
Model 19467 Convertible as a Hardtop +8 lb.
Powerglide Transmission +23.3 lb.
*These are weights that are reported to states for licensing purposes.
Weight Differentials
L78 396 Cubic Inch Engine +225 lb.
Power Steering +21.3 lb.
Power Brakes +9.4 lb.
Air Conditioning +79.3 lb.
Auxiliary Top +58.0 lb.
+8.5 lb. (In Place of Soft Top)
Special Suspension (RPO F40) +5.1 lb.
Radio +20 lb.
Less Heater -19.0 lb.
Fiberglass Fuel Tank
RPO N03; Coupe Only
+8.4 lb.


Engine Specs

Type: V8
Valve Location: In Head
Bore / Stroke: 4.00" / 3.25"
4.094" / 3.76" (L78 Engine)
Displacement: 327 Cubic Inches
L78: 396 Cubic Inches
Compression Ratio: 10.5 : 1 (Standard; 300 hp RPO L75, L78 engine)
11.0:1 (340 hp RPO L76; 360 hp engines RPO L84)
Rocker Arms Stamping, Steel
Rocker Arm Ratio 1.5:1
Valve Train Lash, Inlet / Exhaust
Hydraulic Lifters
Zero
Valve Train Lash, Inlet / Exhaust
Mechanical Lifters
Inlet: .025 inch
Exhaust: .025 inch
Crankshaft Material: Forged Steel
Valve Train Lifters 250 horsepower, 300 horsepower (RPO L75) Engines: Hydraulic
365 Horsepower (RPO L76) Engine, 375 Horsepower (RPO L84) Engine: Mechanical
Camshaft Material: Cast Alloy Iron
Oil Pump Type: Gear
Normal Oil Pressure 30 - 45 psi @ 1,500 RPM
50 - 75 psi @ 2,000 RPM
Oil Pressure Gauge Mechanical
Crankcase Oil Capacity, Standard and L75 Engines 4 Quarts, Less Filter
5 Quarts, With Filter
Crankcase Oil Capacity, L76 and L84 Engines 5 Quarts, Less Filter
6 Quarts, With Filter
Recommended Oil Grade Above 32°: SAE 20W, SAE 20 or SAE 10W-30
To 0°: SAE 10W or SAE 10W-30
Below 0°: SAE 5W or SAE 5W-20
Carburetor Carter 3826003 Single 4 barrel
L75 Engine: Carter 3826004 (3826006 Powerglide)
L76 Engine: Carter 3826004
Fuel Filter Strainer
Fuel Pump Mechanical
Fuel Pressure 5¼ - 6½ PSI
Cooling System Capacity ~17 Quarts (with heater)
~16 Quarts (without heater)
Thermostat Type Choke
Radiator Cap Relief Pressure 13 PSI
Battery 12 volt
61 Amp hr. @ 20 hr.
6 cells / 66 Plates
Thermostat Opening 177° - 183° F
Compression Pressure 160 PSI (Base, RPO L75 Engine)
150 PSI (RPO L76, L84 Engine)

Horsepower
Standard Engine 250 hp @ 4,400 RPM;
Torque: 350 lb-ft @ 2,800 RPM
RPO L75 300 hp @ 5,000 RPM;
Torque: 360 ft-lb. @ 3,200 RPM
RPO L76 365 hp @ 6,200 RPM;
Torque: 360 lb-ft @ 4,000 RPM
RPO L84
Fuel Injection
375 hp @ 6,200 RPM;
Torque: 350 lb-ft @ 4,800 RPM
RPO L78
396 Cubic Inch
425 hp @ 6,400 RPM;
Torque: 415 lb-ft @ 4,000 RPM

Fuel Injection
Manufacturer Rochester Products
Model 7017380
Recommended Fuel Premium
Fuel Pump Mechanical
Fuel Pressure 5 ¼ - 6 ½ PSI (Idle to 1,000 RPM)
Inlet Manifold Cast Aluminum
Air Cleaner Type Dry
Air Meter Location Engine Left Side
Plenum Chamber Integral With Inlet Manifold
Ram Pipe Length 12 Inches
Fuel Induction Metered as Function of Air Flow
Air / Fuel Ratio Control Vacuum Sensitive Diaphragm Located on Air Flow Meter
Fuel Meter Pump Type Gear
Fuel Meter Pump Location In Fuel Meter Assembly
Fuel Meter Pump Drive Gear Driven by Flexible Shaft From Distributor
Fuel Meter Pump Pressure 300 PSI
Injection Nozzles Quantity 8
Injection Nozzles Material Brass
Injection Nozzles Location Mounted on Inlet Manifold Above Intake Ports
Injection Nozzles Orifice Size - Fuel .0118 inch
Injection Nozzles Insulation Bakelite
Automatic Choke Type Electric, Time Temperature Type
Automatic Choke Location On Air Meter Assembly
Automatic Choke Current Draw 1 amp @ 70°
Automatic Choke Fast Idle Cam Yes

Ignition System
Coil Delco-Remy 1115091 (FI Engines: 1115107)
Coil current rating 4 amps (engine stopped)
1.8 amps (engine running)
Breaker Gap .019" (New), .016" (Used)
Ignition Timing
Initial Design Setting
8° @ 550 RPM (Standard, L75 Engine)
10° @ 650 RPM (L79 Engine)
12° @ 700 RPM (L76, L84 Engine)
10° @ 700 RPM (L78 Engine)
Ignition Timing Centrifugal Advance Begins: 750 RPM
26 ° @ 4,100 RPM (Standard, L75, L76 Engines)
24 ° @ 2,350 RPM (L79, L84 Engines)
28 ° @ 4,000 RPM (L78 Engine)
Ignition Timing Vacuum Advance Begins: 6 inches Hg (Standard, L75 Engines)
Maximum: 22° @ 12 inches Hg(L76, L78, L79 Engines)
Begins: 4 inches Hg (Standard, L75 Engines)
Maximum: 16° @ 8.2 inches Hg
Begins: 8 inches Hg (L78 Engine)
Maximum: 15° @ 15.5 inches Hg
Spark Plug AC44 (327 Cubic Inch Engines)
AC43N (396 Cubic Inch Engines)
Spark Plug Thread 14 mm.
Spark Plug Torque 25 lb.-ft.
Spark Plug Gap .033 - .038 inch
Firing Order 1-8-4-3-6-5-7-2

1965 Corvette Options, Prices

RPO Description Production Price
Genuine Leather Seats 2,128 (9.03%) $80.70
A01 Soft Ray Tinted Glass, all windows 8,752 (37.14%) $16.00
A02 Soft Ray Tinted Glass, windshield 7,624 (32.35%) $10.80
A31 Power Windows 3,809 (16.16%) $59.20
C07 Auxiliary Hardtop (for convertible) 7,787 (33.05%) $236.75
C48 Heater and Defroster Deletion (credit) 39 (0.17%) n/a
C60 Air Conditioning 2,423 (10.28%) $421.80
F40 Special Front and Rear Suspension 975 (4.14%) $37.70
G81 Positraction Rear Axle, all ratios 19,965 (84.73%) $43.05
G91 Special Highway Axle, 3.08:1 ratio 1,886 (8.00%) $2.20
J50 Power Brakes 19,965 (84.73%) $43.05
J61 Drum Brakes (substitution credit) 316 (1.34%) n/a
K66 Transistor Ignition System 3,686 (15.64%) $75.35
L75 327 cu. in. 300hp Engine 8,358 (35.47%) $53.80
L76 327 cu. in. 365hp Engine 5,011 (21.27%) $129.15
L78 396 cu. in. 425hp Engine 2,157 (9.15%) $292.70
L79 327 cu. in. 350hp Engine 4,716 (20.01%) $107.60
L84 327 cu. in. 375hp Engine (fuel injection) 771 (3.27%) $538.00
M20 4-Speed Manual Transmission 21,107 (89.57%) $188.30
M35 Powerglide Automatic Transmission 2,021 (8.58%) $199.10
N03 36 Gallon Fuel Tank (Coupe only) 41 (0.17%) $202.30
N11 Off Road Exhaust System 2,468 (10.47%) $37.70
N14 Side Mount Exhaust System 759 (3.22%) $134.50
N32 Teakwood Steering Wheel 2,259 (9.59%) $48.45
N36 Telescopic Steering Column 3,917 (16.62%) $43.05
N40 Power Steering 3,236 (13.73%) $96.85
P48 Cast Aluminum Knock-Off Wheels (5) 1,116 (4.74%) $322.80
P91 Blackwall Tires, 7.75x15 (nylon cord) 168 (0.71%) $15.70
P92 Whitewall Tires, 7.75x1 (rayon cord) 19,300 (81.90%) $31.85
T01 Goldwall Tires, 7.75x15 (nylon cord) 989 (4.20%) $50.05
U69 AM-FM Radio 22,113 (93.84%) $203.40
Z01 Comfort and Convenience Group 15,397 (65.34%) $16.15

Total Production: 23,564
Coupe: 8,186 (34.74%)
Convertible: 15,378 (65.26%)

Notes: Base Corvette Coupe with 327 cu. in. 250 hp engine and three speed manual transmission: $4,321.00.
Base Corvette Convertible with 327 cu. in. 250 hp engine and three speed manual transmission: $4,106.00.

Colors

Code Exterior Quantity Interior Soft Top Wheels
AA Tuxedo Black 1,191 (5.05%) Black / Blue / Green / Maroon / Red / Saddle / Silver / White Black / White / Beige Black
CC Ermine White 2,216 (9.40%) Black / Blue / Green / Maroon / Red / Saddle / Silver / White Black / White / Beige Black
FF Nassau Blue 6,022 (25.56%) Black / Blue / White Black / White / Beige Black
GG Glen Green 3,782 (16.05%) Black / Green / Saddle / White Black / White / Beige Black
MM Milano Maroon 2,831 (12.01%) Black / Red / Maroon / Saddle / White Black / White / Beige Black
QQ Silver Pearl 2,552 (10.83%) Black / Red / Silver Black / White / Beige Black
UU Rally Red 3,688 (15.65%) Black / Red / White Black / White / Beige Black
XX Goldwood Yellow 1,275 (5.41%) Black / White Black / White / Beige Black
Note: Clicking on an image with this symbol (Boxes) will lead to a larger image.


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