Further information: Porsche 547 engine
1957 1.5 L (1,498 cc) 105 kW (143 PS; 141 bhp) 146 N⋅m (108 lbf⋅ft) Type 547 air-cooled, four-stroke, DOHC, eight-valve boxer flat-four (718/1500 RSK Spyder)
1959 1.5 L (1,498 cc) 110 kW (150 PS; 148 bhp) 147 N⋅m (108 lbf⋅ft) Type 547 air-cooled, four-stroke, DOHC, eight-valve boxer flat-four (718/2 Monoposto)
1958–1961 1.6 L (1,587 cc) 118 kW (160 PS; 158 bhp) 147 N⋅m (108 lbf⋅ft) Type 547 air-cooled, four-stroke, DOHC, eight-valve boxer flat-four (718/1600 RSK Spyder, 718 RS 60, 718 RS 61)
1961 2.0 L (1,981 cc) 176 kW (239 PS; 236 bhp) 205 N⋅m (151 lbf⋅ft) Type 771 air-cooled, four-stroke, DOHC boxer flat-eight (718 W-RS)
1962 2.0 L (1,981 cc) 154 kW (209 PS; 207 bhp) 192 N⋅m (142 lbf⋅ft) Type 771 air-cooled, four-stroke, DOHC boxer flat-eight (718 RS 61, 718 GTR
Type 906 six-cylinder engine; this example has been brought up to 2.5 litres
1965–1966 2.0 L (1,981 cc) 191 kW (260 PS; 256 bhp) 210 N⋅m (155 lbf⋅ft) Type 771 air-cooled, four-stroke, boxer flat-eight (906/8 Bergspyder)
1966 2.0 L (1,991 cc) 155 kW (211 PS; 208 bhp) 196 N⋅m (145 lbf⋅ft) air-cooled, four-stroke, boxer flat-six (906 Coupé)
1966 2.0 L (1,991 cc) 162 kW (220 PS; 217 bhp) 206 N⋅m (152 lbf⋅ft) air-cooled, four-stroke, boxer flat-six (906 Coupé, 906 Langheck Coupé)
1966 2.2 L (2,195 cc) 198 kW (269 PS; 266 bhp) 230 N⋅m (170 lbf⋅ft) Type 771 air-cooled, four-stroke, boxer flat-eight (906/8 Coupé)
1967 2.0 L (1,991 cc) 162 kW (220 PS; 217 bhp) 206 N⋅m (152 lbf⋅ft) Type 901 air-cooled, four-stroke, boxer flat-six (907 Langheck)
1968 2.2 L (2,195 cc) 198 kW (269 PS; 266 bhp) 230 N⋅m (170 lbf⋅ft) Type 771 air-cooled, four-stroke, boxer flat-eight (907 Langheck, 907 Kurzheck)
1968 2.0 L (1,981 cc) 198 kW (269 PS; 266 bhp) 211 N⋅m (156 lbf⋅ft) Type 771 air-cooled, four-stroke, boxer flat-eight (907 Kurzheck)
See Porsche 911
901/05 boxer flat-six
901/02 on 1968 911S
911/57 on 1973 911T
Early 911's (1963-73)
1963 2.0 L (1,991 cc) 96 kW (131 PS; 129 bhp) (at 6,200 rpm) 162 N⋅m (119 lbf⋅ft) (at 4,600 rpm) air-cooled OHC 12-valve boxer flat-six (901)
1964–1968 2.0 L (1,991 cc) 96 kW (131 PS; 129 bhp) (at 6,100 rpm) 174 N⋅m (128 lbf⋅ft) (at 4,200 rpm) air-cooled OHC 12-valve boxer flat-six (911, 911 L)
1967 2.0 L (1,991 cc) Type 916 engine air-cooled four-stroke, twin cam boxer flat-six (911R based on 906 engine)