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Bore (engine) In a piston engine, the bore (or cylinder bore) is the diameter of each cylinder. Engine displacement is calculated based on bore, stroke length and the number of cylinders: [1] The stroke ratio, determined by dividing the bore by the stroke, traditionally indicated whether an engine was designed for power at high engine speeds ...
366. The 366 cu in (6.0 L) big-block V-8 gasoline engine was used in Chevrolet medium duty trucks and school buses. It had a bore and a stroke of 3.935 in × 3.76 in (99.9 mm × 95.5 mm). This engine was made from the 1960s until 2004.The 366 used 4 rings on the pistons, as it was designed from the very beginning as a truck engine.
Stroke ratio, today universally defined as bore/stroke ratio, is a term to describe the ratio between cylinder bore diameter and piston stroke length in a reciprocating piston engine. This can be used for either an internal combustion engine, where the fuel is burned within the cylinders of the engine, or external combustion engine, such as a ...
The RB engines, produced from 1959 to 1979, are raised-block (taller) versions of the B engines. All RB engines have a 3 + 3 ⁄ 4 in (95.3 mm) stroke, with the bore being the defining factor in engine size. All RB wedge engines share a deck height of 10.725 in (272.4 mm), and were fitted with 6.768 in (171.9 mm) long connecting rods, resulting ...
The external dimensions of all their V8s, from 326–455 cu in (5.3–7.5 L) were the same. Engine displacement is a function of bore and stroke. Pontiac's V8s share the same 6.625 in (168.3 mm) connecting rod length, with the exceptions of the later short deck 301, 265, and 303 Ram Air V.
All three engines share the same basic block design and external measurements; the different displacements are achieved through various bore and stroke combinations. Bore center measurement was kept the same as the Gen-1 V8 at 4.75 in (120.7 mm) so that boring equipment could be reused. Other than that, this engine is vastly different from the ...
1962 – The block's cylinder wall casting was revised to allow four-inch bores, and the 327-cubic-inch version of the engine, using this bore diameter and increased stroke, was introduced. 1967 - The oil filter mounting received an adapter and machining to allow the use of spin-on filters; canister mounting was possible by removing the adapter.
The engine has a bore and stroke of 84 mm × 90 mm (3.31 in × 3.54 in) with a compression ratio of 16.0:1, and generates 250 hp (186 kW) at 3,250 rpm and 440 lb⋅ft (597 N⋅m) of torque at 1,750 rpm, paired with a Ford–GM 10-speed automatic transmission. It provided a towing capacity of up to 11,440 lb (5,189 kg) when properly equipped.