A:27   B:13   C:48   D:32   E:47   F:35   S:M4   Weight:75(g) ( GZ is only 70 g)

Please note GZ has the same mounting size as old CS 049 engines, shown  here. GZ 049 has great improvement  on head, Piston/liner, Case, and  overall performance. Please view  various articals about the GZ 1/2A  engines development in our site 049 talk page.

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