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In addition, while the CJ and SCJ engines used the same autothermic piston casting, the piston-to-bore clearance specification between the CJ and SCJ 428 engines is slightly different, with the SCJ engines gaining a slightly looser fit to permit higher operating temperature. [39] Horsepower measurements at a street rpm level remained the same. [40]
The top option was the 429 SCJ (Super Cobra Jet), rated at 375 hp (280 kW), and was part of the "Drag Pack" option. Selecting the "Drag Pack" option turned a 429 CJ into a 429 SCJ. The drag pack required either the 3.91:1 or the 4.30:1 axle ratio, and included a 4-bolt main engine block, forged pistons, 780 CFM Holley carburetor, engine oil ...
The 428 Cobra Jet was the largest Cougar engine, rated at 335 hp (with or without Ram Air). [ 12 ] As a mid-year change, Mercury introduced the Boss 302 V8 on April 1, 1969, in conjunction with the introduction of the Cougar Eliminator (with the Boss 302 engine being exclusive to the Eliminator).
The GTs were part of the Torino range, with the 302 CID V8 standard, with optional engines being the 390 CID V8 in two- and four-barrel versions. 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.
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. Standard with the SCJ was the Drag Pack, this package added a front-mounted engine oil cooler and a 3.91 ratio gear, while the Super Drag Pack offered a ...
Engine choices began with the 250 cubic inch I6 and ran to several V8 choices, including the standard 289 with two-barrel carburetor, and the FE-based 390. The powerful 428 cu in (7.0 L) Cobra Jet, another FE derivative and the largest engine offered in the Ranchero to date, was a mid-1968 option. The 1968 model marked the final year of ...
The smallest-displacement engine of the 385 engine family, the 370 was introduced after the 429 and 460, replacing the 361 cu in (5.9 L) 360 Truck (FT) V8 in 1977. . Sharing its 3.59-inch stroke with the 429, the 370 was designed with a downsized 4.05-inch bore (shared with its predecessor and the 3
Initially, the standard engine was a 302 cubic-inch V8, replaced by a 351 cubic-inch V8 midway through the 1969 model year. As with its LTD counterpart, the 390 and 429 V8 engines were options. In 1971, the 390 V8 was replaced by a 402 cubic-inch V8 (though sold as a 400). For a variety of reasons, 1972 saw a major decrease in powertrain output.