Buick GSX 455 Stage I (1970) Specifications

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1970 Buick GSX 455 Stage I
Performance
Max Power 365 PS (360 bhp) (268.5 kW) @ 4600 rpm
Specific Output 48.2 bhp/litre0.79 bhp/cu in
Brake mean effective pressure 1163.1 kPa (168.7 psi)
Max Torque 691.0 Nm (510 ft·lb) (70.5 kg m) @ 2800 rpm
Specific Torque 92.55 Nm/litre
Redline
Power to weight 203.62 bhp/ton
Max Speed
0-50 mph (80 km/h)
0-60 mph
0-100 km/h
0-100 mph
80-120 km/h (50-70 mph) in top gear
Standing km
Chassis
Doors 2
Engine Location Front
Engine Alignment Longitudinal
Engine code
Aspiration Normal
Cylinders V8 in 90.0 degrees, vee
Engine Capacity 7.5 litre7466 cc (455.603 cu in) OHV 2 valves per cylinder 16 valves in total
Bore and stroke 109.50 mm x99.10 mm 4.31 in x3.9 in
Compression Ratio 10.50:1
Engine Construction
Engine Lubrication Wet sump
Engine Manufacturer GM
Main crankshaft bearings 5
Compressor type N/A
Intercooler None
Catalytic converter N
Bore/stroke ratio 1.1
Unitary capacity 933.25 cc per cylinder
Fuel System 1 Rochester Quadrajet carburettor
Gearbox 4 speed manual
Drive Type rear wheel drive
Transmission Ratios: Top 1.00
Final Gear Ratio 3.64
Steering
Brakes Ventilated Disc /Drum-S
Brake size 279 mm front and rear 229 mm
Braked area
Suspension Independent Coil Springs Anti-roll bar rear Live axle Coil Springs Anti-roll bar
Wheels 7.00 x 15rear 7.00 x 15
Tyres G60-15rear G60-15
Steering Wheel Turns (lock to lock) 5.600
Max Turning Circle
Drag Co-efficient
Frontal area Cx
Dimensions and Weight
Overall Length 5131 mm 202 in
Overall Width 1963 mm 77.3 in
Overall Height 1346 mm 53 in
Wheelbase 2845 mm 112 in
Weight distribution (front)
Track Front 1527 mm 60.1
Ground Clearance 163 mm 6.4 in
Kerb Weight 1768 kg 3898 lb
Equipment
Fluids and Capacities
Fuel Tank 75.8 litres16.7 UK Gal20 US Gal
Fuel Consumption Combined
C02 emissions
Coolant Water
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