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After 1991, the 429 became the sole gasoline engine offered in medium sized and larger Ford trucks; the 460/7.5L was only used in trucks under 1½-ton payload. 429 Police Interceptor. The 1971 429 police interceptor was tuned similarly to the 429 Cobra Jet, with an 11.3:1 compression ratio.
A new option for Cobra models was the reflective laser stripe, formerly an option for just GT models. Although the high-performance 429 Cobra Jets were still rated at the same power as the 1970 models, Super Stock and Drag Illustrated had disappointing results from its test of a 1971 Torino Cobra. They tested a Cobra equipped with the 370 hp ...
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 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 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 model line was offered with the entire range of powertrains available to Ford intermediates, ranging from a 155 hp 250 cubic-inch inline-6 to the 370 hp 429 Cobra Jet Ram Air V8. [29] For 1971, Ford adopted the Torino nameplate across its entire intermediate model line, leading to the retirement of both the Falcon and Fairlane nameplates in ...
The second-generation Cougar underwent a revision of the powertrain offerings. For 1971, a 240 hp 351 Cleveland two-barrel V8 was the standard engine with a 351C four-barrel V8 as an option. [29] 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).
Later in the season, the Boss 429 engine was used by many of the teams, after it had finally been declared "officially homologated" by NASCAR president Bill France. The Boss 429 engine was homologated in the 1969 Ford Mustang Boss 429. In a very unusual move, Ford homologated the engine separately from the car in which it was to race.