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Australia only produced one style of cylinder head for the 351 engines, a 2V head with small ports and open chamber cylinder heads. As a result, the Australian 351-4V engines used the 2V cylinder head. This required a unique 4V intake manifold with the smaller 2V ports, unlike the American 351-4V intake manifold which used the large ports. [1]
The same manifold was used in MAF applications, with the addition of the MAF sensor in the air intake tube. The MAF system continued, with minor revisions, until the retirement of the engine in 2001. Ford offered a performance head that was a stock part on 1993–1995 Mustang Cobra models and pre-1997 ½ Ford Explorers and Mercury Mountaineers ...
The only performance engine for 1972 was the 351-4V CJ. The 351-4V CJ offered a number of performance enhancing features not offered on the 1970–71 351C-4V. It included a special intake manifold, modified camshaft, special valve springs and dampers, a 750 CFM Motorcraft Carburetor, 4-bolt main bearing caps and 2.5 in (63.5 mm) dual exhaust ...
Comparison of a stock intake manifold for a Volkswagen 1.8T engine (top) to a custom-built one used in competition (bottom). In the custom-built manifold, the runners to the intake ports on the cylinder head are much wider and more gently tapered. This difference improves the volumetric efficiency of the engine's fuel/air intake.
The Boss 351 engine was a 351 Cleveland four barrel engine with a mechanical cam, solid lifters, 11.0:1 compression ratio, aluminum intake, and a 4 bolt main bearing block. It was topped with an all-new 750 CFM Ford 4 barrel carburetor. The Boss 351 engine produced 330 horsepower at 5,400 rpm. [7]
Ford 351 may refer to: Ford 351 Windsor (351W), an engine part of the Ford 90 degree V family; Ford 351 Cleveland (351C), an engine part of the Ford 335 family;
A 4-barrel carburetor was mated to a high-rise, dual plane intake manifold feeding high-flow cylinder heads that are still considered among the best of that era. [citation needed] Its big ports used 2.02 in (51 mm) intake and 1.60 in (41 mm) exhaust valves. An aggressive cam was fitted to take advantage of the much better breathing top end.
The 351 or 351C were used in some 4000, 5000, and 6000 series trucks from 1962 to 1972 and the 351E was used in the 1000–3500 series trucks from 1966 to 1969. [13] The 351, 351C, and 351M engines were medium duty truck engines, while the 351E was a light-duty engine – basically a 351M without the oil-driven governors.