1967 AC 428 Coupé

AC 428 Coupe - — AC 428 Coupe
Image courtesy of AC

The 428 Coupé is a road car from AC, with rear wheel drive, a front located engine and a Frua-styled 2 door coupé body style. The 7 litre engine is a naturally aspirated, overhead valve, 8 cylinder unit that develops 345 bhp (350 PS/257 kW) of power at 4600 rpm, and maximum torque of 626 N·m (462 lb·ft/63.8 kgm) at 2800 rpm. Power is transmitted to the wheels through a 3 speed automatic transmission. With a claimed weight at the kerb of 1483 kg, the AC 428 Coupé can dispense with the 0-60 mph dash in 5.4 seconds and the quarter mile from rest in 13.8 seconds. Maximum speed stated is 233 km/h (145 mph).
Full specs

Body type
2 door fixed-head coupé with 2+2 seats
Length
4509 mm
Weight
1483 kg
Engine type
naturally aspirated petrol
Engine size
7 litre
Cylinders
8, V
Power
350 PS / 345 bhp / 257 kW @ 4600 rpm
Torque
626 Nm / 462 ft.lb / 63.8 kgm @ 2800 rpm
Acceleration
0-60 mph 5.4 s
Top speed
233 km/h / 145 mph

1967 AC 428 Coupé specifications

1967 AC 428 Coupé data
bodywork
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Body type	2+2 seater fixed-head coupé
Number of doors	2
Designer	Frua
dimensions & weights
Wheelbase	2438 mm	96 inches
Track/tread (front)	1397 mm	55 inches
Track/tread (rear)	1422 mm	56 inches
Length	4509 mm	177.5 inches
Width	1702 mm	67 inches
Height	1257 mm	49.5 inches
Ground clearance	178 mm	7 inches
length:wheelbase ratio	1.85
Kerb weight	1483 kg	3269 lb
Weight distribution	45.4% front
fuel tank capacity	85.9 litres	18.9 [22.7] UK [US] gal.
aerodynamics
Drag coefficient
Frontal area
CdA
Powertrain
engine type	naturally aspirated petrol
Engine manufacturer	Ford
Engine code
Cylinders	V 8 in 90° vee
Capacity	7 litre 7010 cc (427.776 cu in)
Bore × Stroke	105 × 101.2 mm 4.13 × 3.98 in
Bore/stroke ratio	1.04
Valve gear	overhead valve (OHV) 2 valves per cylinder 16 valves in total
maximum power output (SAE)	350 PS (345 bhp) (257 kW) at 4600 rpm
maximum torque (SAE)	626 Nm (462 ft·lb) (63.8 kgm) at 2800 rpm
Specific output (SAE)	36.7 kW/litre 49.9 ps/litre 49.2 bhp/litre 0.81 bhp/cu in
Specific torque (SAE)	89.3 Nm/litre 1.08 ft·lb/cu³
Engine construction	cast iron block & head
Lubrication	wet sumped
compression ratio	10.5:1
Fuel system	1 Ford carb
bmep (brake mean effective pressure)	1122.2 kPa (162.8 psi)
Maximum RPM	5250 rpm
crankshaft bearings	5
Engine coolant	Water
Unitary capacity	876.25 cc
Aspiration	Normal
Compressor	N/A
Intercooler	None
Catalytic converter	N
performance
Acceleration 0-80km/h (50mph)	4 s
Acceleration 0-60mph	5.4 s
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)	15.7 s
Standing quarter-mile	13.8 s
Standing kilometre	26.2 s
Maximum speed	233 km/h (145 mph)
Power-to-weight ratio	Higher is better 235.87 PS/tonne (1000 kg) 0.24 PS/kg 173.48 kW/tonne (1000 kg) 0.17 kW/kg 232.64 bhp/tonne (1000 kg) 0.23 bhp/kg 0.1 bhp/lb
Weight-to-power ratio	Lower is better 5.76 kg/kW 9.63 lb/bhp
fuel consumption
Fuel consumption
universal fuel consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
Carbon dioxide emissions
Carfolio Calculated CO₂ ^?
VED band (UK)
CO₂ Effizienz (DE)
chassis
Engine position	front
Engine layout	longitudinal
Drive wheels	rear wheel drive
Torque split	N/A
Steering	rack & pinion
turns lock-to-lock	3.500
Turning circle	13.40 m
Front suspension	I.CS.DW.
Rear suspension	I.CS.DW.
Wheel size front
Wheel size rear
Tyres front	205 x 15
Tyres rear	205 x 15
Brakes F/R	Di/Di-S
Front brake diameter	298 mm
Rear brake diameter	267 mm
Braked area	3742 cm²
Gearbox	3 speed automatic
Top gear ratio	1
Final drive ratio	2.88
general
Carfolio.com ID	89386
Production total
Model code
RAC rating	54.7
Insurance classification	No information available
Tax band	No information available
1967 AC 428 Coupé added before December 1995. Last modified 2013-02-28.