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Engine | Straight 4 | Straight 4 | Straight 4 | Straight 4 | |
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Valve train | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | Single overhead camshaft | Single overhead camshaft | |
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Valves | 2 valves per cylinder
8 total valves | 2 valves per cylinder
8 total valves | 2 valves per cylinder
8 total valves | 2 valves per cylinder
8 total valves | |
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Displacement | 107 cu in | 122 cu in | 64 cu in | 79 cu in | |
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Bore x Stroke | 3 in x 3 in
1.06 ratio | 3 in x 4 in
0.93 ratio | 3 in x 2 in
1.31 ratio | 3 in x 3 in
1.06 ratio | |
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Compression ratio | 8.90:1 | 8.90:1 | 9.30:1 | 20.00:1 | |
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Maximum power | 113 hp @ 5600 rpm | 115 hp @ 5800 rpm | 50 hp @ 5600 rpm | 45 hp @ 5000 rpm | |
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Maximum torque | 109 ft.lb @ 3400 rpm | 123 ft.lb @ 3600 rpm | 57 ft.lb @ 3000 rpm | 55 ft.lb @ 3000 rpm | |
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Maximum RPM | | | 6000 | | |
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Fuel | Petrol | Petrol | Petrol | Diesel | |
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Main bearings | | 5 | 5 | 5 | |
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Construction | | Cast iron block &
Light alloy head | Iron block &
Light alloy head | Iron block &
Light alloy head | |
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Coolant | Water | Water | Water | Water | |
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Sump | | Wet sumped | Wet sumped | Wet sumped | |