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Engine | Straight 4 | Straight 4 | Straight 4 | |
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Valve train | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | |
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Valves | 2 valves per cylinder
8 total valves | 2 valves per cylinder
8 total valves | 4 valves per cylinder
16 total valves | |
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Displacement | 120 cu in | 109 cu in | 103 cu in | |
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Bore x Stroke | 3 in x 3 in
0.95 ratio | 3 in x 3 in
0.9 ratio | 3 in x 3 in
0.92 ratio | |
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Compression ratio | 10.00:1 | 9.50:1 | 18.40:1 | |
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Maximum power | 128 hp @ 6000 rpm | 120 hp @ 5300 rpm | 76 hp @ 4400 rpm | |
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Maximum torque | 130 ft.lb @ 4000 rpm | 123 ft.lb @ 4000 rpm | 122 ft.lb @ 1800 rpm | |
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Fuel | Petrol | Petrol | Diesel | |
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Catalytic converter | no | no | yes | |
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Main bearings | 5 | 5 | | |
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Construction | Light alloy block &
Light alloy head | Light alloy block &
Light alloy head | | |
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Coolant | Water | Water | Water | |