Does GM make their own engines?

  • Thread starter Thread starter atoxyz123
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atoxyz123

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IF they do, do they order the parts the pistons, rods, etc. etc. OR DO THEY ALSO make all the little parts for the engine and put them together? My thoughts would be they order the necessary parts from other companies and put them together. Details?
 
Most of them are made by GM . They also have a Toyota Corrola twin with a Japanese engine
 
No car manufacturer makes all of the components for their engines, it just isn't cost effective.
 
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