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Porsche 917 LH-71 – Specifications & Performance

Technical Specifications

1971 Porsche 917 Langheck Specifications

4.9 L Flat 12 Engine Spec

type Racing Car
built at Germany
engine
Air Cooled 912.10 Flat-12 w/Dry Sump Lubrication
position Mid, Longitudinal
aspiration Natural
ignition
Twin Spark, Dual 12V Distributors
block material
RZ5 Magnesium Alloy w/Chromal Cylinders, Aluminum Alloy Cylinder Heads
valvetrain
Gear Driven DOHC, 2 Valves per Cyl
fuel feed Bosch Fuel Injection
displacement 4,907 cc / 299.4 cu in
bore 86.0 mm (3.4 in)
stroke 70.4 mm (2.8 in)
compression 10.5:1
engine designer Hans Mezger
power
600 bhp / 448 kW @ 8,300 rpm
specific output 122 bhp per litre
torque
563 Nm / 415 ft lbs @ 6,400 rpm
body / frame
Polyester & Fiberglass Panels over Tubular Aluminum Alloy Frame
driven wheels RWD
wheel type Cast Magnesium
front tires 4.75/11.30-15 Dunlop
rear tires 6.00/13.50-15 Dunlop
front brakes
Internally Vented Discs w/Dual-Circuit Calipers w/4-Piston Aluminum Calipers
rear brakes
Internally Vented Discs w/Dual-Circuit Calipers w/4-Piston Aluminum Calipers
steering Rack & Pinion
f suspension
A-Arms & Control Arms w/Coil Springs, Bilstein Shocks
r suspension
Control Arms w/Coil Springs, Bilstein Shocks
curb weight 927 kilo / 2,044 lbs
wheelbase 2300 mm / 90.6 in
front track 1564 mm / 61.6 in
rear track 1584 mm / 62.4 in
length 4660 mm / 183.5 in
width 2032 mm / 80.0 in
height 940 mm / 37.0 in
transmission 5-Speed Manual
tran clutch 3-Disc Dry Clutch
fuel capacity 120 litres or 31.68 gal.
top speed 386 km/h (240 mph)
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