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429 Police Interceptor. The 1971 429 police interceptor was tuned similarly to the 429 Cobra Jet, with an 11.3:1 compression ratio. Featuring forged notched pistons [clarification needed] the engine was rated at 370 hp (gross). [citation needed] Applications: Ford Thunderbird (1968–1973) Ford Mustang (1969–1971) Ford Mustang Boss 429 (1969 ...
The 429 Super Cobra Jet, which was part of a Drag Pack option, was a 429 cu in (7,030 cc) four-barrel with dual exhaust and Ram Air induction, but it was rated at 375 hp (280 kW) SAE gross (335 hp (250 kW) net), and had a 780 CFM Holley 4 BBL carburetor.
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 addition of emissions controls and the adoption of unleaded fuel required lowered compression ratios and retarded ignition timing. In one example, the range-topping 429 V8 would see its output drop from 365 hp to 212 hp from 1971 to 1972. In 1972, the 429 was joined by a 224-hp 460 cubic-inch V8 seen previously in the Lincoln lineup. [32]
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 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).
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 Ford Mustang Mach 1 is a combination performance and appearance package offered as an option for the Ford Mustang in August 1968 for the 1969 model year.. Over the following years, the package was available with various engines that became more modest as emissions controls, unleaded gas, fleet mileage quotas, and higher gasoline prices undercut the "horsepower wars" that were the origin of ...