Murdovsky Y Engine (automobile engines)

The Murdovsky Y Series is Murdovsky Motors' overhead camshaft (OHC) inline-four, inline-six, V6, V8, and V10 gasoline-powered small block engine family. The inline-four configuration had a displacement range of 1.2 L to 2.5 L, but the V6 and inline-six versions, as well as the V8 and V10, reached displacements up to 4.6 L and 6.5 L, respectively. The majority of family engines have cast iron engine blocks and aluminum cylinder heads, though the materials used varied depending on application. Some members of the engine family also have siamesed cylinders.

The development of the series began in the 1990s, when Murdovsky wanted to develop a completely new engine for the third generation Mogul, the successor of the Aberdeen SUV. The goal was to achieve good fuel efficiency and performance as well as low emissions with a modern design. The Murdovsky Y engine family started with the 1.2L 4Y27EL in 1990 for the 1991 model year. The Murdovsky engines are used in various Raputa, Gorganstien, and Murdovsky vehicles. Y engines used in Gorganstien trucks were marketed under the Serpent name from 1997–2010 while the Athena name was used for a time at Murdovsky for vehicles equipped with SOHC versions of the engines. The engines were first produced in the Murdovsky Georgetown Engine Plant since 1990, with additional capacity added in London, Ontario in 2003.

Y27E Series
The Y27E was produced from 1990 through 2012. The Y27E has been offered in 2-valve SOHC, 3-valve SOHC, and 4-valve DOHC versions. The engines were also offered with both aluminum and cast iron blocks, depending on application. The Y27's bore and stroke are nearly square at 3.19 in × 3.03 in (81 mm × 77 mm), respectively.

Numerous variations of the Y27E design were produced, from basic SOHC 8-valve all the way to DOHC 20-valve versions for the Y27E in the inline-four configuration, whilst for six cylinder versions (V6 and inline-six) variations ranged from 12-valve versions to 30-valve configurations. The power output also differed significantly between versions, ranging from 69 kW (93 PS; 92.5 hp) at 3,200 rpm in the inline-four 4Y27EL to 92 PS (67 kW; 90 hp) at 4,300 rpm in the supercharged 6Y27EJ inline-6 installed in the third-generation Murdovsky Mogul sedan/hatchback and third-generation Murdovsky Genosse minivan to 189 PS (140 kW; 187 hp) in the supercharged 6Y27ER found in a number of high-performance sedans based on the Mogul's platform.