Series Introduced Discontinued _1_ 1968 1971 _2_ 1971 1972 _3_ 1972 1973 _4_ 1973 1975 _5_ 1975 1976

Type 411 (Series 1)

Fitted 383 cu in. 6277cc engine installed with a Torqueflite 3 speed auto transmission. At first glance, the 411 body is very similar to the Type 410. Externally, the radiator grille is more trapezoidal than the 410's. The inner pair of driving lamps, housed in chromed shrouds, protrude from the radiator grille. Slimmer bumpers wrap round the body at front and rear. There is an air vent intersected by a short moulding strip on both rear wing flanks, linked by ducting to vents at the rear parcel shelf. Only one trim line is applied to the wing flanks. Door kick plates are narrower than on the 410. A wing mounted repeater flasher light is mounted on the top of the front wing flank. Bonnet badge is deleted in favour of a narrow Bristol nameplate on the grille and boot lid. The sculpting of the body around the outer headlamps is a particularly satisfying and attractive feature. Finally, the traditional twin-spoke Bluemel steering wheel is replaced by a smaller 3-spoke leather-trimmed wheel with a Bristol badge set into its central boss.

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 Type 411 Series 2

Door locks and handles are semi recessed. Bumpers are marginally higher. A self-levelling suspension system was introduced. Odometer is also marked in Kph. Wheel rims are wider.

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Type 411 Series 3

Body is completely restyled. New larger 6556cc 400c.i. engine introduced, but lower compression ratio (9.5:1) gives equivalent performance. Most noticeable changes in appearance are the front wings, bonnet and grille restyle. The wings are not notched and present 4 siamised 7 inch Headlamps, providing excellent illumination for night driving. A more powerful alternator is installed to supply more electrical current and to cope with the extra demand.

 Coach line replaces side trims; wider, higher kick-plate to protect door skins; indicator repeater lamps moved to front of wings. Raised wing crowns provide manoeuvring sightlines and air dam effect over bonnet surface at speed. At the rear, the exhaust is split into 4 tail pipes siamised to each side and finished with chrome trims. These are interesting because the pipe-ends are in fact dummies: the gases are vented downwards, some two inches further back, so as to spare the back garage wall a row of four unsightly soot-marks.

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Type 411 Series 4

Power output is now down to 264 bhp at 4800 rpm, owing to still lower compression ratio of 8.2:1. New price in 1973 was £8973.

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Type 411 Series 5

 Grille is of similar design to that used on the Series 4, but colour changed to matt black and centred coloured Pegasus emblem atop Bristol badge replaces the nameplate on the previous series. Inertia reel seat belts fitted as standard. Price new; £12,587.

1969 Bristol 411 Wheelbase 2896 mm 114 in   Track front 1372 mm 54 in   rear 1397 mm 55 in   Length 4902 mm 193 in   Width 1727 mm 68 in   Height 1473 mm 58 in   Ground clearance 127 mm 5 in   Kerb weight 1676 kg 3695 lb   Weight distribution (Front) 53.00 % Fuel capacity 82 litres 18 UK Gal 21.7 US Gal engine Manufacturer Chrysler Type V-8 in 90° vee Wet sumped OHV 16 valves total 2 valves per cylinder Main bearings 5 Construction cast iron block & head Bore × stroke 107.95mm × 85.85mm 4.25 in × 3.38 in Bore/Stroke ratio 1.26 Displacement 6286 cc (383.595 cu in) Unitary capacity 785.75 cc/cylinder Compression ratio 10.00:1 Fuel system 1 Ca carb Aspiration Normal Max. output (SAE) 339.7 PS (335.0 bhp) (249.8 kW) @5200 rpm Max. torque (SAE) 576.0 Nm (425 lbft) (58.7 kgm) @3400 rpm Maximum rpm 5500 rpm Coolant Water Specific output 53.3 bhp/litre 0.87 bhp/cu in Specific torque 91.63 Nm/litre 0-50mph (80 km/h) 6.00s 0-60mph 7.00s 0-Quarter-mile 15.00s  Top speed 230 km/h Power-to-weight 199.88 bhp/ton chassis Engine location Front Engine alignment Longitudinal Steering recirculating ball PAS Turns lock-to-lock 3.000 Turning circle 12.20 m Suspension Front I.CS. Rear LA.TB. Wheels F/R 6.0 x 15/6.0 x 15 Tyres F 205 x 15 Tyres R 205 x 15 Brakes F/R Di/Di-S Brake ∅ F/R 277/269 mm Transmission 3A Drive RWD Top gear ratio 1.00 Final drive ratio 3.07