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1974 -1975 Porsche 911 Carrera RSR 3.0 Technical Specifications Engine Configuration 911/75 B6 Location Rear, longitudinally mounted Construction magnesium alloy block and head Displacement 2,996 cc / 182.8 cu in Bore / Stroke 95.0 mm (3.7 in) / 70.4 mm (2.8 in) Compression 10.5:1 Valvetrain 2 valves / cylinder, SOHC...
