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Engine | V 12 (180º vee) | V 12 (60º vee) | Straight 5 | |
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Valve train | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | Overhead valves | |
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Valves | 4 valves per cylinder
48 total valves | 4 valves per cylinder
48 total valves | | |
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Displacement | 183 cu in | 182 cu in | 129 cu in | |
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Bore x Stroke | 3 in x 2 in
1.52 ratio | 3 in x 2 in
1.44 ratio | 3 in x 3 in
0.94 ratio | |
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Compression ratio | 11.5:1 | 11:1 | | |
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Maximum power | 450 hp @ 11500 rpm | 430 hp @ 9800 rpm | 510 hp @ 7500 rpm | |
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Maximum torque | | | 369 ft.lb @ 6000 rpm | |
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Fuel | Petrol | Petrol | Petrol | |
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Main bearings | | | 6 | |
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Construction | Light alloy block &
Light alloy head | Light alloy block &
Light alloy head | Cast iron block &
Alloy head | |
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Coolant | | | Water | |