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Engine | Straight 4 (60º vee) | Straight 4 (60º vee) | V 6 (60º vee) | V 6 (60º vee) | |
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Valve train | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | | | |
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Valves | 4 valves per cylinder
16 total valves | 4 valves per cylinder
16 total valves | 4 valves per cylinder
24 total valves | 4 valves per cylinder
24 total valves | |
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Displacement | 122 cu in | 122 cu in | 213 cu in | 213 cu in | |
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Bore x Stroke | 3 in x 3 in
1.03 ratio | 3 in x 3 in
1.03 ratio | 4 in x 3 in
1.07 ratio | 4 in x 3 in
1.07 ratio | |
|
Compression ratio | 9.3:1 | 9.3:1 | 10.3:1 | 10.3:1 | |
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Maximum power | 240 hp @ 5500 rpm | 240 hp @ 5500 rpm | 285 hp @ 6500 rpm | 285 hp @ 6500 rpm | |
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Maximum torque | 270 ft.lb @ 3000 rpm | 270 ft.lb @ 3000 rpm | 253 ft.lb @ 4000 rpm | 253 ft.lb @ 4000 rpm | |
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Fuel | Petrol | Petrol | Petrol | Petrol | |
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Construction | Aluminium block &
Aluminium head | Aluminium block &
Aluminium head | Aluminium block &
Aluminium head | Aluminium block &
Aluminium head | |