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English: A 1964/1965 Chrysler B 383 V8 engine undergoing some work at Autosports Designs in Huntington, NY (Long Island). These are so plentiful that they used to be considered throwaways...
This block is one of three displacements, 302/327/350, that underwent a crankshaft bearing diameter transformation for 1968 when the rod-journal size was increased from the 2 in (50.8 mm) diameter small-journal to a 2.1 in (53.3 mm) large-journal and a main-journal size that was increased from 2.3 in (58.4 mm) to 2.45 in (62.2 mm).
The first Y-block on Ford automobiles and F100 trucks was the 239 cu in (3,910 cc) version as released in 1954 with EBU casting numbers. The Y-block was the same displacement as the old Ford Flathead V8 that it replaced but with a bigger bore and a shorter stroke (3.5 x 3.1 in).
With a finished weight of 36 pounds (16 kg), the block weighs 51 pounds (23 kg) less than the cast-iron block in the Chevy II 153 cu in (2.5 L) inline-4. Plating the piston skirts was necessary to put a hard iron skirt surface opposite the silicon of the block to prevent scuffing. The plating was a four layer electro-plating process.
Chevrolet had introduced its popular small-block V8 in 1955, but needed something larger to power its medium duty trucks and the heavier cars that were on the drawing board. The big-block, [11] which debuted in 1958 at 348 cu in (5.7 L), was built in standard displacements up to 496 cu in (8.1 L), with aftermarket crate engines sold by ...
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 ...
Compared to the FB20 engine, which is undersquare with an 84 mm × 90 mm (3.31 in × 3.54 in) bore and stroke for 2.0 L (1,995 cc) swept displacement, the FA20 is perfectly square with an 86 mm × 86 mm (3.39 in × 3.39 in) bore and stroke for 2.0 L (1,998 cc) swept displacement.
The second-generation Cologne V6 was introduced in 1974. It displaced 2.8 L; 170.4 cu in (2,792 cc) with a bore and stroke of 93.03 mm × 68.5 mm (3.66 in × 2.70 in), and used a geared camshaft design. While based on the 2.6, the larger bore necessitated a different block. [2]