| ENGINE front, 4stroke; cylinders: 8, Vee-slanted at 90'; bore and stroke: 3.87x 3 in, 98.3 x 76.2 mm; engine capacity: 283 cu in, 4,627.05 cu cm; compression ratio: 9.2; max power (SAE): 195 hp at 4,800 rpm; |
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| max torque (SAE): 285 lb/ft, 39.3 kg/m at 2,400 rpm; max number of engine rpm: 5,000; specific power: 42.1 hp/I; cylinder block: cast iron; cylinder head: cast iron; crankshaft bearings: 5; valves: 2 per cylinder, overhead, in line, slanted at 45', push-rods and rockers, hydraulic tappets; camshaft: 1, at centre of Vee; lubrication: gear pump, full flow filter; lubricating system capacity: 8.27 imp pt, 10 US pt, 4.7 l; carburation: 1 Rochester 7024101 downdraught twin barrel carburettor; fuel feed: mechanical pump; cooling system: water; cooling system capacity: 30.80 imp pt, 37 US pt, 17.5 l. |
| TRANSMISSION driving wheels: rear; clutch: single dry plate; gearbox: mechanical; gears: 3 + reverse; synchromesh gears: II, III; gearbox ratios: I 2.94, II 1.68, III 1, rev 2.94; gear lever: steering column; final drive: hypoid bevel; axle ratio: 3.36.
CHASSIS box-type cruciform frame, lateral members; front suspension: independent, wishbones, lower trailing links, coil springs, anti-roll bar, telescopic dampers; rear suspension: rigid axle, trailing radius arms, torque arms, oblique transverse linkage bar, coil springs, telescopic dampers. |  |
| STEERING recirculating ball; turns of steering wheel lock to lock: 4.50.
BRAKES drum, servo; braking surface: total 186.20 sq in, 1,200.99 sq cm. ELECTRICAL EQUIPMENT voltage: 12 V; battery: 44 Ah; alternator; ignition distributor: Delco-Remy; headlights: 4. DIMENSIONS AND WEIGHT wheel base: 119 in, 3,023 mm; front track: 60.30 in, 1,532 mm; rear track: 59.30 in, 1,473 mm; overall length: 209.90 in, 5,331 mm; overall width: 77 in, 1,956 mm; overall height: 54 in, 1,372 mm; ground clearance: 6 in, 152 mm; dry weight: 4,060 lb, 1,842 kg; distribution of weight: 43.6% front axle, 56.4% rear axle; turning circle (between walls): 44 ft, 13.4 m; width of rims: 5"; tyres: 8.00 x 14; fuel tank capacity: 15.8 imp gal, 19 US gal, 72 l. BODY estate car; doors: 4 + 1; seats: 6; front seats: separate. PERFORMANCE max speeds: 39 mph, 61.8 km/h in 1st gear; 68 mph, 109.5 km/h in 2nd gear; 110 mph, 177.1 km/h in 3rd gear; power-weight ratio: 20.7 lb/hp, 9.4 kg/hp; carrying capacity: 1,058 lb, 480 kg; speed in direct drive at 1,000 rpm: 22.7 mph, 36.5 km/h. PRACTICAL INSTRUCTIONS fuel: 95-100 oct petrol; engine sump oil: 6.69 imp pt, 8 US pt, 3.8 l, SAE 5W-20 (winter) 10W-30 (summer), change every 5,600 miles, 9,000 km; gearbox oil: 2.46 imp pt, 3 US pt, 1.4 l; final drive oil: 3.34 imp pt, 4 US pt, 1.9 l, SAE 80; greasing: every 5,600 miles, 9,000 km; valve timing: inlet opens 32 degrees 30' before tdc and closes 87 degrees 30' after bdc, exhaust opens 78 degrees 30' before bdc and closes 45 degrees 30' after tdc; tyre pressure (medium load): front 24 psi, 1.7 atm, rear 24 psi, 1.7 atm. VARIATIONS AND OPTIONAL ACCESSORIES limited slip final drive; power-assisted steering; brakes with metal linings, braking surface 134.90 sq in, 870.10 sq cm; 3.55 axle ratio; overdrive (0.70 ratio), 3.70 axle ratio; Powergilde automatic gearbox, hydraulic torque convertor and planetary gears with 2 ratios (I 1.82, II 1, rev 1.82), max ratio of convertor at stall 2.10, 3.36 3.55 axle ratios; standard engine, 6 cylinders in line, capacity 230 cu in, 3,760.50 cu cm, max power (SAE) 140 hp at 4,400 rpm, 8.5 compression ratio, 7 crankshaft bearings, 1 downdraught single barrel carburettor, Powerglide automatic and 3-speed mechanical gearboxes, 3.55 axle ratio (export model, 125 hp at 4,000 rpm, 7 compression ratio), max speed 97 mph, 156.2 km/h; V8 engine, capacity 327 cu in, 5,346.45 cu cm, 250 or 300 hp (for engine and transmissions see variations Impala Sport Saloon); V8 engine, capacity 409 cu in, 6,687.15 cu cm, 340 400 or 425 hp, max speed (425 hp) 138 mph, 222.2 km/h (for engine and transmissions see variations Impala Sport Saloon); export model, 170 hp at 4,200 rpm; Impala 9-passenger Estate Car. |