Shelby Cobra 427 Roadster group 4 (1966)

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1967_shelby_cobra-pic-3528941083313090031.jpeg Source

Also called Shelby Cobra Mk III
How to build a Cobra Replica


160 units built
Click here
Click here and here and here and here and here and here and here for street version
Click here for Semi Competition

Homologation number: 220
Homologation start: 2/1/1966

Ford Big Block FE 427, V8 (90o), 4 stroke, petrol engine
6997cc, 107.7 x 96.2 mm
550 bhp / 410 KW @ 6700 rpm
640 Nm / 472 ft lbs @ 3700 rpm
cast-iron block with 258.3mm deck height and bore spacing 117.6mm (click here, click here for cast iron, and here for aluminium), aluminium head
forged crankshaft with 5 main bearings 69.8mm diameter, 61.9 big end journal diameter
connecting rod lenght between centers 164.8mm, big end bearing diameter 65.8mm
side camshaft with overhead valves (OHV), 2 valves / cylinder - 16 valves total
aspiration: natural with 1 x Holley double pumper 780 CFM center pivot 4 barrel Carburetor, List-3255-1 model C5AF-9510-BV
firing order 1-5-4-2-6-3-7-8
water cooled
Wet sump
Muncie M21/M22 close ratio 4 speed manual gearbox
1st: 2.2/1
2nd: 1.64/1 or 1.66/1
3rd: 1.28/1 or 1.31/1
4th: 1.00/1
R: 2.27/1
limited slip rear differential, 3.54/1, 2.72/1, 2.92/1, 3.03/1, 3.3/1, 4.1/1, 4.56/1
aluminium panels on steel tubular chassis. 4" diameter of main tubes
double wishbones, coil springs over telescopic dampers f/r
rack-and-pinion Steering
discs, all-round
Length 3960 mm (155.9 in)
Width 1720 mm (67.7 in)
Height 1240 mm (48.8 in)
Wheelbase 2286 mm (90 in)
Track (fr/r) 1422 mm (56 in) / 1422 mm (56 in)
8.15 - 15 tires

Results in WSCC

Running as Prototype
Season races for Prototypes
Car entry, chassis number Car number/ result
Dayt Sebring Monza Tourist trophy Targa Florio Spa Nurb Mugelo Rossfeld Le Man Reims Freiburg Ollon Bridgeh
Team 2000km 12h 1000km 500km 1000km Hill climb 24h 12h Hill climb Hill climb 500km
Essex Wire Corp, CSX3009 #91, 3rd
Scuderia Filipinetti, CSX3013 #183, 12th
Total points
Works Starts/finishes 2/2 1/1 1/1
Drivers Team entries and car number
Essex Wire Corp
Skip Scott 91
Dick Thompson 91
Scuderia Filipinetti
Peter Ettmüller 183

1966+Shelby+Cobra+427.JPG Source
ERA%20753%20Chassis%202.jpg Source
FE1_1000.jpg Source
Wiki_0_Oiling_Patterns.jpg Source
Side oiler configuration for Ford FE engine


Shelby_Cobra_427_by_bagera3005.png Source
AC-Cobra-Mk1-1962–1963-5.jpg Source
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