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Engine | V 8 ( 90.0º vee) | Straight 6 | Straight 6 | V 6 ( 90.0º vee) | Straight 4 | |
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Valve train | Overhead valves | Overhead valves | Overhead valves | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | |
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Valves | 2 valves per cylinder
16 total valves | 2 valves per cylinder
12 total valves | 2 valves per cylinder
12 total valves | 4 valves per cylinder
24 total valves | 4 valves per cylinder
16 total valves | |
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Displacement | 306 cu in | 249 cu in | 249 cu in | 212 cu in | 145 cu in | |
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Bore x Stroke | 4 in x 3 in
1.07 ratio | 4 in x 4 in
1.1 ratio | 4 in x 4 in
1.1 ratio | 4 in x 4 in
0.99 ratio | 3 in x 4 in
0.9 ratio | |
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Compression ratio | 8.50:1 | 8.30:1 | 8.30:1 | 9.60:1 | 10.40:1 | |
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Maximum power | 147 hp @ 3800 rpm | 112 hp @ 3800 rpm | 112 hp @ 3800 rpm | 208 hp @ 5200 rpm | 173 hp @ 5800 rpm | |
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Maximum torque | 244 ft.lb @ 2400 rpm | 195 ft.lb @ 1600 rpm | 195 ft.lb @ 1600 rpm | 219 ft.lb @ 2800 rpm | 167 ft.lb @ 4500 rpm | |
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Maximum RPM | 4400 | 4400 | 4400 | | 6800 | |
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Fuel | Petrol | Petrol | Petrol | Petrol | Petrol | |
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Catalytic converter | yes | yes | yes | yes | yes | |
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Main bearings | 5 | 7 | 7 | 4 | | |
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Construction | Cast iron block &
Cast iron head | Cast iron block &
Cast iron head | Cast iron block &
Cast iron head | | Aluminium block &
Aluminium head | |
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Coolant | Water | Water | Water | Water | Water | |
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Sump | Wet sumped | Wet sumped | Wet sumped | | Wet sumped | |