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It is an all-iron engine (block and heads) with two valves per cylinder. It retained the 4.25 in (107.95 mm) bore diameter of the old 7.0 L (427 cu in) and 7.4 L (454 cu in) big-blocks, but the stroke was increased to 4.37 in (111.00 mm) for a total displacement of 495.95 cu in (8.1 L).
The 455 big block Olds V8 was replaced in 1977 with the 402.6 cu in (6.6 L; 6,598 cc) small block, which used a 4.351 in (110.5 mm) bore, the largest ever used in a small-block V8, with the Olds small-block standard deck and 3.385 in (86.0 mm) stroke. The bore was so wide that the cylinder walls were siamesed, as in the Chevrolet 400 V8, with ...
Bore and stroke are 3 + 13 ⁄ 16 in × 3 + 5 ⁄ 8 in (96.8 mm × 92.1 mm) for an overall displacement of 331.1 cu in (5.4 L). This engine features an oiling system which uses a central cast-in passage between the lifter galleries feeding oil to the cam and crank by grooves machined into the cam bores.
Perkins Diesel Conversions & Factory fitted units, by Allan T. Condie, 2nd edition 2000, ISBN 0-907742-79-3 The 4 107T was used in UK Military electricity generating sets, the engines when in need an overhaul were rebuilt by a Kent based engineering works in Ramsgate, adjacent to the inner Harbour known as Walkers Marine (Marine Engineers) Ltd. Houchins of Ashford an MOD contractor would send ...
Deck height choices include 9.2 in (234 mm) and 9.5 in (241 mm). Maximum displacements are 4.25 in (108 mm) stroke and 4.125 in (105 mm) bore. The resulting maximum displacement is 454.38 cu in (7,446 cc). The uncross-drilled block with increased bore capacity became available from the third quarter of 2009.
The block is changed, with sleeved cylinders in an aluminum block with a larger bore of 4.125 in (104.8 mm) and longer stroke of 4 in (101.6 mm) than the LS2. The small-block's 4.4 in (110 mm) bore spacing is retained, requiring pressed-in cylinder liners.
The 272 cu in (4,465 cc) version of the Y-Block was the same bore as the outgoing Mercury 256 cubic inch Y-Block but with a longer stroke (3.625 x 3.3 in). [8] The standard 1955 U-code featured a two barrel Holley carburetor and was rated at 162 bhp (121 kW) at 4,400 rpm and 258 lb⋅ft (350 N⋅m) at 2,400 rpm.
Bore and stroke size is 3.552 in × 4.165 in (90.2 mm × 105.8 mm), identical to the 5.4 L V8. Both 2-valve and 3-valve versions have been produced. The 6.8 L uses a split-pin crank with 72° firing intervals and a balance shaft gear driven by the left camshaft to quell vibrations inherent to a 90° bank angle V10 engine.