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Re: oliver 1950 gm
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Posted by R.D. OHIO on January 04, 2004 at 12:21:58 from (208.34.154.185):
In Reply to: oliver 1950 gm posted by kevin on December 31, 2003 at 18:05:27:
Yes a GM 4-53 is 4 x 53 cu in per cylinder, however that is a bit misleading as they ars 2 cycle engines. Every down stroke is a power stroke. Thus when a 2 cycle engine turns as many RPM as a 4 cycle engine you have twice the power strokes. So to compair engines you wind up with 424 cu in. However on a 4 stroke engine there is some enertia you have to take into account. as a result the gm will perform best when running at high end rpm's not lugged. I have worked on several GM engines, all use the same numbering system. As an example a locamotive engine 16-278 A would have 16 cylinders 278 cu in per cylinder.
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