SHELBY COBRA 427® (1966)

'66 Cobra 427®
	1966
Class	S
	Front-Mounted
	RWD
	Manual 4-speed
	180
	1,480 3 hours 15 minutes

Like many British specialist manufacturers, AC Cars had been using the Bristol straight-6 engine in its small-volume production, including its AC Ace two-seater roadster. This had a hand-built body with a steel tube frame and aluminium body panels that were made using English wheeling machines. The engine was a pre-World War II design by BMW which by the 1960s was considered dated. Bristol decided in 1961 to cease production of its engine and instead to use Chrysler 331 cu in (5.4 L) V8 engines. AC started using the 2.6 litre Ford Zephyr engine in its cars. In September 1961, American automotive designer Carroll Shelby wrote to AC asking if they would build him a car modified to accept a V8 engine. AC agreed, provided a suitable engine could be found. Shelby went to Chevrolet to see if they would provide him with engines, but not wanting to add competition to the Corvette they said no. However, Ford wanted a car that could compete with the Corvette and they happened to have a brand new engine which could be used in this endeavor, namely the V8 428ci (7.01L) & 427ci (7.0L). From 1965 to 1967 this was the world's fastest car.

Availability

The Shelby '66 Cobra 427® is available in the V8 Naturals career series part of the Pro/Am category, The Legend Continues bonus series and the Clash Of The Classics bonus series, both part of the Legend category. This vehicle was added in the American Muscle Update (v1.3) released in August 2013 and can be unlocked as soon as V8 Naturals or The Legend Continues are unlocked or by earning 14 trophies in Clash Of The Classics. Used in MotorFiesta 1 in Stage 01 Goal 3.

This vehicle can be acquired for 180 or 144 with showcase discount.

Characteristics

Stage	PR (Upgrades)	Top Speed	Acc.	Braking	Cornering	Cost	Parts
Initial w/	23.1	165 mph 265 kph	4.19 s	120.0 ft 36.5 m	0.95 g	180 (144 )
Max PR w/ R$	32.8	175 mph 281 kph	3.94 s	111.2 ft 33.9 m	1.08 g	R$700,500 (+R$735,600)	18 4
Max PR w/	40.6	186 mph 299 kph	3.79 s	107.0 ft 32.6 m	1.20 g	+442 (823 )	11 33

Top Speed (kph)	164 220 276 332 388 444 500 265 299
Acc. (s)	8.60 6.73 5.13 3.80 2.73 1.93 1.40 4.19 3.79
Braking (m)	51 44 37 30 23 16 9 36.5 32.6
Cornering (g)	0.6 0.8 1.2 1.8 2.6 3.6 4.8 0.95 1.20

Upgrades (33)

	Upgrade	Duration	R	G
1	Engine: High Flow Air Filter	2 Hours	31,900	8
2	Engine: High-Performance Engine Tuning	6 Hours	47,800	12
3	Engine: Competition Throttle Body	12 Hours	71,700	18
4	Engine: Increase Engine Bore	—	—	28
5	Engine: Performance Intake Manifold	2 Days	161,400	44
6	Engine: Competition Cam-shaft	—	—	65
7	Engine: Aluminium Cylinder Heads	2 Days	363,100	100
8	Engine: Engine swap - Ford 427-cid FE Big Block V8	—	—	150
1	Drivetrain: Lightweight Flywheel	2 Hours	29,700	8
2	Drivetrain: Uprated Sports Driveshaft	6 Hours	44,500	12
3	Drivetrain: Performance Limited Slip Differential	12 Hours	66,700	18
4	Drivetrain: Uprated Sports Gearbox	—	—	26
1	Body: Polycarbonate Window Replacements	2 Hours	23,600	6
2	Body: Weight Reduction	6 Hours	35,300	9
3	Body: General Body Refinement	12 Hours	53,000	14
4	Body: Aero Optimised Undertray	—	—	22
5	Body: Advanced Body Refinement	2 Days	119,300	32
6	Body: Advanced Weight Reduction	—	—	48
1	Suspension: Strut Bar	2 Hours	27,200	7
2	Suspension: Performance Sway Bars	6 Hours	40,800	10
3	Suspension: Advanced Suspension Tuning	—	—	16
4	Suspension: Uprated Sports Shocks	1 Day	91,800	25
5	Suspension: Fully Adjustable Sports Shocks	—	—	38
1	Exhaust: Uprated Hi-Flow Catalytic Converter	2 Hours	26,900	7
2	Exhaust: Custom Exhaust Headers	6 Hours	40,300	10
3	Exhaust: Performance Cat-back Exhaust	—	—	16
1	Brakes: Modern Brake Pads	2 Hours	20,800	5
2	Brakes: Modern Calipers	6 Hours	31,200	8
3	Brakes: Uprated Sports Brake Pads	12 Hours	46,800	12
4	Brakes: Uprated Sports Calipers	—	—	18
1	Tires & Wheels: Camber Alignment	2 Hours	24,900	6
2	Tires & Wheels: High-Grip Performance Compound	6 Hours	37,400	10
3	Tires & Wheels: Lightweight Alloy Rims	—	—	15
	TOTAL: 33	4 days 20 hours	700,500 +735,600 =1,436,100	442 / 823

Colour keys
White	purchase before any upgrades Or instant purchase
Green	purchase after any upgrades
Red	only purchase

For upgrades including PR values, please see the project page RR3 Wiki:Upgrades Section SHELBY, please be aware that PR values can vary depending on the upgrade order.

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The Legend Continues
CHEVROLET STINGRAY 427 (1969) • SHELBY COBRA 427® (1966)