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Engine | V 8 ( 90.0º vee) | V 8 ( 90.0º vee) | V 8 ( 90.0º vee) | | |
|
Valve train | Single overhead camshaft | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | | |
|
Valves | 3 valves per cylinder
24 total valves | 4 valves per cylinder
32 total valves | 4 valves per cylinder
32 total valves | | |
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Displacement | 281 cu in | 281 cu in | 281 cu in | | |
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Bore x Stroke | 4 in x 4 in
1 ratio | 4 in x 4 in
1 ratio | 4 in x 4 in
1 ratio | | |
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Compression ratio | 9.80:1 | 8.50:1 | 8.50:1 | | |
|
Maximum power | 304 hp @ 5750 rpm | 406 hp @ 6000 rpm | 395 hp @ 6000 rpm | | |
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Maximum torque | 320 ft.lb @ 4500 rpm | 390 ft.lb @ 3500 rpm | 390 ft.lb @ 3500 rpm | | |
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Maximum RPM | 6250 | 6500 | 6500 | | |
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Fuel | Petrol | Petrol | Petrol | | |
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Catalytic converter | yes | yes | yes | no | |
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Construction | Aluminium block &
Aluminium head | Cast iron block &
Aluminium head | Cast iron block &
Aluminium head | | |
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Coolant | Water | Water | Water | | |
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Intercooler | | yes | yes | | |
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Sump | Wet sumped | | | | |