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4.6L DOHC (Cobra) Specs4.6L DOHC (Mark VIII) Specs4.6L SOHC Specs5.0L Specs
Engine90 degree DOHC V-890 degree DOHC V-890 degree SOHC V-890 degree OHV V-8
Displacement281 cubic inches281 cubic inches281 cubic inches302 cubic inches or 4,942 cc
Valve train4 Overhead camshafts driven by chains4 Overhead camshafts driven by chains2 Overhead camshafts driven via chainsOne in-block camshaft driven via chain
Valves32; 4 per cylinder32; 4 per cylinder16; 2 per cylinder16; 2 per cylinder
Cylinder headsCast aluminumCast aluminumCast aluminiumCast iron
Cylinder blockCast aluminum with a 6-bolt mainCast aluminum with a 6-bolt mainCast iron with a 4-bolt mainCast iron with 2-bolt main
Bore X Stroke3.552 x 3.543 inches3.552 x 3.543 inches3.552 x 3.543 inches4.00 x 3.00 inches
Compression ratio9.85:19.8:19.0:19.0:1
TransmissionT-454R70W4R70WAOD
ExtraCamshafts are more aggressive
Forged crankshaft
COP ignition for 97-98
'91-'93 HP & TQ SAE-net200 hp @ 4,000 rpm
275 lbs.-ft. of torque @ 3,000 rpm
'94-'95 HP & TQ SAE-net205 hp @ 4,500 rpm
265 lbs.-ft. of torque @ 3,200 rpm
'96-'97 HP & TQ SAE-net205 hp @ 4,250 rpm
280 lbs.-ft. of torque @ 3,000 rpm
'93-'96 HP & TQ SAE-net
(base models)
280 hp @ 5,500 rpm
285 lbs.-ft of torque @ 4,500 rpm
'95-'96 HP & TQ SAE-net
(LSC models)
290 hp @ 5,500 rpm
290 lbs.-ft of torque @ 4,500 rpm
'97-'98 HP & TQ SAE-net
(base models)
285 hp @ 5,750 rpm
280 lbs.-ft of torque @ 4,500 rpm
'97-'98 HP & TQ SAE-net
(LSC models)
290 hp @ 5,750 rpm
290 lbs.-ft of torque @ 4,500 rpm
'96-98 HP & TQ SAE-net305 hp @ 5,800 rpm
300 lbs.-ft of torque @ 4,800 rpm
'99 Mustang (PI) HP & TQ SAE-net260 hp @ 5,250 rpm
302 lbs.-ft. of torque @ 4,000 rpm


1/4 Times:
'91 Cougar XR-717.1 @ 82.2 mph / 0-60 mph: 9.4 seconds
'95 T-Bird LX16.7 @ 85 mph / 0-60 mph: 8.7 seconds
'97 T-Bird LX15.8 @ 88.4 mph / 0-60 mph: 7.9 seconds
'93 Mark VIII14.9 @ 96 mph / 0-60 mph: 6.6 seconds
'98 Mark VIII LSC15.3 @ 94 mph / 0-60 mph: 7.0 seconds


Source Data came from misc. auto magazines: Motor Trend and Car & Driver

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