Mercury Cyclone GT III specs: all versions 1970 · 2 versions in our catalog. Cyclone GT III + Compare Add to garage 5.8 l 351 Cleveland 2-barrel V8 (SAE gross), manual186 kW (253 PS)PetrolCoupe7.0 l 429 Cobra Jet V8 (SAE gross)276 kW (375 PS)PetrolCoupe Engines VersionEnginePowerTorqueGearboxDriveProduction years 351 Cleveland 2-barrel V8 (SAE gross), manual5.8 l · 8 cyl · Petrol5,752 cc 186 kW253 PS · 249 hp -3-sp Manual Rear-wheel drive 1970 429 Cobra Jet V8 (SAE gross)7.0 l · 8 cyl · PetrolC 276 kW375 PS · 370 hp 610 Nm450 lb-ft -Rear-wheel drive 1970