| ENGINE front, 4 stroke, slanted at 3 degrees 54'; cylinders: 8, Vee-slanted at 90'; bore and stroke: 3.88 x 3.26 in, 98.5 x 82.8 mm; engine capacity: 307 cu in, 5,030.81cu cm; compression |
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| ratio: 9; max power (SAE): 200 hp at 4,600 rpm; max torque (SAE): 300 lb ft, 41.4 kg m at 2,400 rpm; max engine rpm: 4,600; specific power: 39.7 hp/I; cylinder block: cast iron; cylinder head: cast iron; crankshaft bearings: 5; valves: 2 per cylinder, overhead, in line, push-rods and rockers, hydraulic tappets; camshafts: 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 7028101 downdraught twin barrel carburettor; fuel feed: mechanical pump; cooling system: water; cooling system capacity: 28.34 imp Pt, 34 US Pt, 16.1 l. |
| TRANSMISSION driving wheels: rear; clutch: single dry plate (diaphragm); gearbox: mechanical; gears: 3 + reverse; synchromesh gears: I, II, III; gearbox ratios: I 2.540, II 1.500. III 1, rev 2.630; gear lever: central; final drive: hypoid bevel; axle ratio: 3.080.
CHASSIS perimeter box-type; front suspension: independent, wishbones, lower trailing links, coil springs, anti-roll bar, telescopic dampers; rear suspension: rigid axle, lower trailing arms, upper torque arm, transverse linkage bar, coil springs, telescopic dampers. |  |
| STEERING recirculating ball; turns of steering wheel lock to lock: 5.80.
BRAKES drum; area rubbed by linings: total 328.30 sq in, 2,117.53 sq cm. ELECTRICAL EQUIPMENT voltage; 12 V; battery: 45 Ah; generator type: alternator, 37 Ah; ignition distributor: Delco-Remy; headlamps: 4. DIMENSIONS AND WEIGHT wheel base: 119 in, 3,023 mm; front track: 62.50 in, 1,587 mm; rear track: 62.40 in, 1,585 mm; overall length: 214.70 in, 5,453 mm; overall width: 79.60 in, 2,022 mm; overall height: 55.80 in, 1,417 mm; ground clearance: 5.90 in, 150 mm; dry weight: 3,790 lb, 1,719 kg; distribution of weight: 50.2% front axle, 49.8yo rear axle; turning circle (between walls): 43.5 ft, 13.3 m; width of rims: 5"; tyres: 8.25 x 14; fuel tank capacity: 20 imp gal, 24 US gal, 91 l. BODY convertible; doors: 2; seats: 5; front seats: separate. PERFORMANCE max speeds: 47 mph, 75.7 km/h in 1st gear; 79 mph, 127.2 km/h in 2nd gear; 105 mph, 169 km/h in 3rd gear; power-weight ratio: 19 lb/hp, 8.6 kg/hp; carrying capacity: 882 lb, 400 kg; speed in direct drive at 1,000 rpm: 25.8 mph, 41.5 km/h. PRACTICAL INSTRUCTIONS fuel: 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 6,000 miles, 9,700 km; gearbox oil: 2.46 imp Pt, 3 US Pt, 1.4 l, SAE 80; final drive oil: 2.99 imp Pt, 3.50 US Pt, 1.7 l, SAE 80; greasing: every 6,090 miles, 9,700 km; valve timing: inlet opens 28 degrees before tdc and closes 72 degrees after bdc, exhaust opens 78 degrees before bdc and closes 30 degrees after tdc; normal tyre pressure: front 24 psi, 1.7 atm, rear 28 psi, 2 atm. VARIATIONS AND OPTIONAL ACCESSORIES see variations Impala Sedan except engines; Turbo-Hydramatic automatic gearbox, hydraulic torque convertor and planetary gears with 3 ratios (I 2.480, II 1.480, III 1, rev 2.080), max ratio of convertor at stall 2, possible manual selection, 3.360 3.080 2.730 2.560 axle ratios; V8 engines, capacity 327 cu in, 5,358.55 cu cm, max power (SAE) 250 hp, max torque (SAE) 335 lb ft, 46.2 kg m, 8.7 compression ratio, 3-speed mechanical gearbox, max speed 108 mph, 173.9 km/h, fuel consumption 15.5 m/imp gal, 12.9 m/US gal, 18.2 l x 100 km, on request 4-speed mechanical gearbox (I 2.540, II 1.800, III 1.440, IV 1, rev 2.540), central gear lever, 3.700 3.550 3.360 3.080 axle ratios, Powerglide automatic gearbox, hydraulic torque convertor and planetary gears with 2 ratios (I 1.760, II 1, rev 1.760), 3.700 3.550 3.360 3.080 axle ratios and Turbo-Hydramatic automatic gearbox (see above); V8 engine, capacity 327 cu in, 5,358.55 cu cm, max power (SAE) 275 hp at 4,800 rpm, max torque (SAE) 355 lb ft, 49 kg m at 3,200 rpm, 10 compression ratio, 3-speed mechanical gearbox, 3.700 3.550 3.360 3.080 axle ratios, speed in direct drive at 1,000 rpm 23.8 mph, 38.3 km/h, max speed 109 mph, 175.5 km/h, fuel consumption 15.4 m/imp gal, 12.8 m/US gal, 18.3 l x 100 km, on request 4-speed mechanical gearbox (I 2.540, II 1.800, III 1.440, IV 1, rev 2.540), central gear lever, 3.730 3.550 3.310 3.070 axle ratios, Powerglide automatic gearbox, hydraulic torque convertor and planetary gears with 2 ratios (I 1.760, II 1, rev 1.760), max ratio of convertor at stall 2.1, 3.550 3.360 3.080 2.730 axle ratios and Turbo-Hydramatic automatic gearbox (see above), max ratio of convertor at stall 2.3; V8 engines, 325 hp (max speed 112 mph, 180.3 km/h) and 385 hp (max speed 121 mph, 194.8 km/h), for further mechanical elements see variations Caprice Custom Coupe, Impala SS Coupe, dry weight 3,735 lb, 1,694 kg, Impala SS Convertible. |