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Engine | | | Straight 4 | V 12 (60º vee) | V 4 | | |
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Valve train | | Double overhead camshaft (per bank) | Single overhead camshaft | | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | |
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Valves | | 4 valves per cylinder
| 4 valves per cylinder
16 total valves | 2 valves per cylinder
24 total valves | 2 valves per cylinder
8 total valves | | |
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Displacement | | 183 cu in | 122 cu in | 242 cu in | 79 cu in | 82 cu in | |
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Bore x Stroke | | 4 in x 3 in
1.35 ratio | 3 in x 4 in
0.93 ratio | 3 in x 3 in
1.08 ratio | 3 in x 3 in
1.1 ratio | | |
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Compression ratio | | 9.5:1 | 10.00:1 | 9.8:1 | 10.50:1 | | |
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Maximum power | | 780 hp @ 8200 rpm | 139 hp @ 6400 rpm | 370 hp @ 7300 rpm | 101 hp @ 6400 rpm | 212 hp | |
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Maximum torque | | 524 ft.lb @ 5000 rpm | 130 ft.lb @ 3800 rpm | | 96 ft.lb @ 4750 rpm | 130 ft.lb | |
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Maximum RPM | | | | | | 10500 | |
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Fuel | | Petrol | Petrol | Petrol | Petrol | Petrol | |
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Main bearings | | | | | 3 | | |
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Construction | | Alloy block &
Alloy head | Cast iron block &
Light alloy head | Light alloy block &
Light alloy head | | | |
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Coolant | | | Water | | Water | | |
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Sump | | | Wet sumped | | | Dry sumped | |
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Code | | | 131 AR.000 | | | | |