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260, 289 and 427 Cobra Specifications
Author: Shelby American Cobras (more...)
Cobra Specs
COBRA Specifications
|
Engine |
Early 260 |
Early street 289 |
Later street 289 |
Competition
289 |
427 |
427
Competition |
| Type |
V-8, iron block, water cooled |
| Head |
Cast iron, removable |
Aluminum, removable |
| Valves |
Overhead,
pushrod/rocker-actuated |
| Max BHP @ rpm |
|
271 @ 5,800 rpm |
306 @ 6,000 rpm |
|
425 @ 6,000 rpm |
490 @ 6,500 rpm advertised, actual was closer to 520hp |
| Max Torque in lb.s-ft. @ rpm |
|
269 @ 4,800 rpm |
|
|
480 @3,700 rpm |
480 @ 3,700 rpm |
| Bore |
|
4.0" |
|
|
4.24" |
|
| Stroke |
|
2.87" |
|
|
3.788" |
|
| Displacement |
|
289cid, 4734cc |
427cid, 7000cc |
| Compression Ratio |
|
10.1:1 |
|
|
11.5:1 |
12.5:1 |
| Induction system |
|
Single Holley four-barrel, 715 cfm |
|
|
Single Holley four-barrel, 780 cfm |
Single Holley four-barrel, 780 cfm |
| Exhaust system |
Standard, dual exhaust |
| Electrical system |
12-volt distributor system
with alternator |
| Fuel consumption |
|
13-15 mpg |
|
|
|
who you kidding?? |
| Chassis |
| Frame |
Tubular Type based on two
parallel main members |
| Body |
Aluminum |
| Front & rear suspension |
|
Independent by transverse spring with lower A-frame
and upper arm consisting of tranverse leaf.Adjustable shocks and concentric springs |
|
|
Independent Coil springs with parallel arms |
Independent Coil springs with parallel arms |
| Tire type and size |
|
6.70"x15" |
7.35"x15" |
|
|
| Front |
9.90"x15" |
| Rear |
11.90"x15" |
|
| Wheel Size |
|
5.5" |
6.0" |
|
|
| Front |
7.5"x15" |
| Rear |
9.5"x15" |
|
| Weights and Measures |
| Wheelbase |
|
90.0" |
|
|
90.0" |
90.0" |
| Front track |
|
53.25" |
|
|
56.0" |
56.0" |
| Rear track |
|
52.75" |
|
|
56.0 |
56.0 |
| Overall height |
|
45.0" |
|
|
49.0" |
49.0" |
| Overall width |
|
61.0" |
|
|
70.5" |
70.5" |
| Overall length |
|
167.0" |
|
|
156.0" |
156.0" |
| Ground clearance |
|
5.5" |
|
|
5.5" |
5.5" |
| Crankcase |
|
6 quart |
|
|
|
|
| Cooling system |
|
x quarts |
|
|
|
|
| Gas tank |
|
18 gals |
|
|
18 gals |
42 gals |
| Curb weight in lbs. |
|
2,100 |
|
|
2,150 |
2,150 |
| Weight Distribution |
|
49%/51% |
|
|
|
|
| Clutch |
| Type |
Single dry disc |
| Diameter |
|
10.5" |
|
10 3/8" |
11.5" |
11.5" |
| Actuation |
Mechanical |
| Transmission |
| Type |
Four speed, full syncromesh,
Borg Warner |
| Ratios |
|
| First |
2.36:1 |
| Second |
1.78:1 |
| Third |
1.41:1 |
| Fourth |
1.00:1 |
| Reverse |
3.54:1 |
|
|
| 2.32:1 |
| 1.61:1 |
| 1.20:1 |
| 1.00:1 |
| 3.54:1 |
|
| 2.32:1 |
| 1.69:1 |
| 1.29:1 |
| 1.00:1 |
| 3.54:1 |
|
| 2.32:1 |
| 1.54:1 |
| 1.19:1 |
| 1.00:1 |
| 3.54:1 |
|
| Brakes |
| Girling discs on all four, Dual master
cylinders |
|
|
|
|
|
|
| Differential |
| Ratios |
|
3.54:1 |
3.77:1 |
3.77:1 |
3.54:1 |
3.77:1;3.09;
3.31;3.54 |
| Drive axles - type |
Enclosed, semi-floating |
| Steering |
| Type |
|
|
|
|
|
|
| Turns, lock to lock |
3 |
|
|
| Turning circle |
33'3" |
|
|
| ratio |
|
|
|
|
|
|
| Performance |
|
| 0-60 mph |
|
|
5.5 secs |
|
4.3 secs |
|
| 0-100 mph |
|
|
13.0 secs |
|
8.8 secs |
|
| Quarter Mile |
|
|
13.9 secs |
|
12.4 @ 106 MPH |
|
| Top Speed |
|
|
138 mph (222 kph) |
|
165 mph (265 kph) |
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Source of information are many of the books listed on the
COBRA books on the Table of Contents Page, including:
THE COBRA STORY by Carroll Shelby
Shelby's Wildlife by William Wyss
This page is under construction as I look for specs.
If you have information or corrections please let me know
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