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Note: The 250-I6 is derived from the Falcon line (144-170-200). U.S. versions were only available with an integral cast head and intake making them only able to accept a one-barrel carb. Foreign versions were also made with typical two-piece intake and head. 1973–1983 302 cu in (4.9 L) Windsor 351W 5.8L light truck/van
The 351W had larger main bearing caps, thicker and longer connecting rods, and a distinct firing order (1-3-7-2-6-5-4-8 versus the usual 1-5-4-2-6-3-7-8, a means to move the unacceptable "noise" of the consecutively-firing adjacent front cylinders to the sturdier rear part of the engine block all while reducing excessive main bearing load ...
This means that the generally inferior flow of a reverse-flow head is less of a disadvantage. In the early days of turbo charging a reverse-flow head allowed the compressor outlet of a turbocharger to blow directly into the inlet manifold with either a blow-through or draw-through carburettor and no intercooler. This allowed the use of shorter ...
Two cylinder-head designs were developed, one similar to the 351W, but with larger ports and valves, and the other with very large ports with canted intake and exhaust valves similar to the big-block Ford 385 series V8. Sales, marketing, and product planning favored the canted valve design, as it was viewed as more innovative. [1] [4]
c) are designed to have a normal shock in the ducting downstream of intake lip, so that the flow at compressor/fan entry is always subsonic. This intake is known as a mixed-compression inlet. However, two difficulties arise for these intakes: one occurs during engine throttling while the other occurs when the aircraft speed (or Mach) changes.
The .351 SL cartridge used an unusual bullet diameter of .351 instead of the .357 or .358 more commonly used in .35-caliber rifle cartridges. [6] Most ammunition available today for the .351 SL is produced by a few boutique manufacturers, often using either cast lead bullets or copper-plated bullets or, occasionally, .358 jacketed bullets ...