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Ford developed two high-performance street versions of the 429 between 1969 and 1971, the Cobra Jet and Super Cobra Jet. The Cobra Jet (429CJ) was fitted with a Rochester Quadrajet 715 cu ft/min (20.2 m 3 /min) Spreadbore 4-bbl carburetor, a larger camshaft; a special set of cylinder heads (DOOE-R) 73.5 CC, combustion chamber and canted valve ...
The 429 Cobra Jet with Ram Air was the standard engine for the Cyclone Spoiler, with the 429 Super Cobra Jet with Drag Pak and Super Drag Pak optional. The Super Cobra Jet upgraded the block to four main bolts and provided a mechanical flat-tappet camshaft, and the carburetor was changed from a 720 cfm Rochester QuadraJet to a 780 cfm Holley.
The Mustang's engine compartment was not wide enough to accommodate the massive Boss 429 engine, so Ford contracted with Kar Kraft of Dearborn, Michigan, to modify 4-speed Cobra Jet Mustangs to accept it. Kar Kraft was a Ford exclusive experimental facility that functioned as Vehicle Engineering for Ford's Special Vehicles.
The 428 Cobra Jet was a performance version of the 428 FE. Launched in April 1968, it was built on a regular production line using a variety of cylinder heads [30] combined with a 735 CFM Holley four-barrel carburetor. The Cobra Jet used heavier connecting rods with a 13/32 rod bolt and a nodular iron crankshaft casting #1UB.
The Boss 302 and Boss 429 were discontinued, with both Boss engines and the 428 Cobra Jet replaced by a 370 hp 429 Cobra Jet V8 (with or without Ram Air). [ 33 ] For 1972, Ford adopted SAE net horsepower ratings, leading to a numerical decrease in advertised engine output.
The 390 four-barrel was supplanted mid-year as the top performance engine by the 428 cu in (7.0 L) Cobra Jet, developing 335 bhp (250 kW). There was also a 428 cu in (7.0 L) Super Cobra Jet. For 1969, the Fairlane 500 , Ranchero, and Torino GT/GTA were also offered with the new 351W CID with a two-barrel producing 250 HP and only in the Torino ...
Chia seeds are tiny and round, and come in colors like black, brown, and white. They’re a member of the mint family. (Getty Images)
The first was the 429 Thunder Jet, the standard engine for the Cobra, rated at 360 hp (270 kW). Next was the 429 CJ (Cobra Jet), rated at 370 hp (276 kW), which included a 2-bolt main block, hydraulic lifters, a 700 CFM Holley or 715 CFM Rochester Quadrajet carburetor, and was available with or without Ram Air. The top option was the 429 SCJ ...