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2. Valve job - Wikipedia

   en.wikipedia.org/wiki/Valve_job

   A valve job is the colloquial term for resurfacing the mating surfaces of the poppet valves and their respective valve seats that control the intake and exhaust of the air/fuel mixture in four stroke internal combustion engine, replacing valve oil seals, replacing any deficient valve springs, and otherwise bringing the components of a cylinder head up to manufacturer’s spec. [1] A ...

3. Automobile engine replacement - Wikipedia

   en.wikipedia.org/wiki/Automobile_engine_replacement

   The Chevrolet engine debuted in 2002 with part number 1958602 and sold for a little under $4000 in 2012. [28] It has 350 cubic inch displacement via a 4.000 inch bore and 3.480 inch stroke. [29] The 602 engine is equipped with iron heads, a cast-iron block, and aluminum pistons. [28]

4. List of GM engines - Wikipedia

   en.wikipedia.org/wiki/List_of_GM_engines

   GM's German subsidiary, Opel, relies on a range of three-, four- and six-cylinder gasoline and diesel engines. A survey [citation needed] of their range shows a reliance on petrol and diesel four-cylinders, and in 2014, there was only one 3-cylinder engine and one 6 cylinder engine in service in Opel's passenger car range.

5. GM small gasoline engine - Wikipedia

   en.wikipedia.org/wiki/GM_small_gasoline_engine

   The GM Small Gasoline Engine (SGE) is a family of small-displacement, inline three- and four-cylinder gasoline engines ranging from 1.0 L to 1.5 L, developed by Adam Opel AG, Shanghai Automotive Industry Corporation (SAIC), MG Motor (MG), Shanghai GM (SGM), and the Pan-Asia Technical Automotive Center (PATAC).

6. Hemispherical combustion chamber - Wikipedia

   en.wikipedia.org/wiki/Hemispherical_combustion...

   A hemispherical head ("hemi-head") gives an efficient combustion chamber with minimal heat loss to the head, and allows for two large valves.However, a hemi-head usually allows no more than two valves per cylinder due to the difficulty in arranging the valve gear for four valves at diverging angles, and these large valves are necessarily heavier than those in a multi-valve engine of similar ...

7. Chevrolet Turbo-Thrift engine - Wikipedia

   en.wikipedia.org/wiki/Chevrolet_Turbo-Thrift_engine

   The 250 engine continued to be used in GM trucks until 1984, after which it was replaced by the 4.3 L V6 (essentially a 350-cubic-inch (5.7 L) Chevy small-block V8 with the two rear cylinders removed). It was also used in a number of large sedans by Chevrolet of South Africa until 1982.