1968 Chevrolet Impala 2
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, 5,030.81 cu cm; compression
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; speciflc 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: steering column: flnal 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: 3,740 lb, 1,698 kg; distribution of weight: 50.2% front axle, 49.8% 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 saloon/sedan; doors: 4; seats: 6; front seats: bench.
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: 18.7 lb/hp, 8.5 kg/hp; carrying capacity: 1,058 lb, 480 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 6,000 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 limited
slip final drive; 3.700 3.550 3.360 2.730 axle ratios; power-assisted steering, [4 turns of
steering wheel lock to lock; adjustable tilt of steering wheel; servo brake; front disc brakes (diameter 11.75 in, 298 mm), internal radial fins, servo, total area rubbed by linings 368.80 sq in, 2,378.76 sq cm; G70 x 14 8.45/G70 x 15 tyres; 6" wide rims; cleaner air system; overdrive/top (0.700 ratio), 3.700 3.550 3.360 axle ratios; 4-speed mechanical gearbox (I 2.850, II 2.020, III 1.350, IV 1, rev 2.850), central gear lever;
Powerglide automatic gearbox, hydraulic torque
convertor and
planetary gears with 2 ratios (I 1.820, II 1, rev 1.820), max ratio of convertor at stall 2.1, possible manual selection, 3.700 3.550 3.360 3.080 axle ratios; 6-cylinder
standard engine, 155 hp, max speed 90 mph, 144.9 km/h (for further mechanical elements see
Biscayne 2-door
Sedan); V8 engines, 250 hp (max speed 108 mph, 173.9 km/h) and 275 hp (max speed 109 mph, 175.5 km/h), for further mechanical elements see variations Impala Convertible; 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 Sport Sedan, dry weight 3,825 lb, 1,735 kg, Impala Sport Coup6, dry weight 3,735 4b, 1,694 kg, Impala Custom Coupe, dry weight 3,750 lb, 1,701 kg, 6-passenger Impala Station Wagon, dry weight 4,050 lb, 1,837 kg, max speed 103 mph, 165.8 km/h, fuel consumption 16.8 m/imp gal, 14 m/US gal, 16.8 l x 100 km, 9-passenger Impala Station Wagon, dry weight 4,105 lb, 1,862 kg (for further mechanical elements see 6-passenger Impala Station Wagon mentioned above).
ENGINE CAPACITY 307 cu in, 5,030.81 cu cm
FUEL CONSUMPTION 17.1 m/imp gal, 14.2 m/US gal, 16.51 x 100 km
SEATS 6 MAX SPEED 105 mph, 169 km/h
PRICE IN USA $ 2,929