12 Superjet top end twice

[Vortex]

The piston rings also go upside down compared to the instructions that come with the pistons.

I hate those instructions...
Key words in instructions are the marking on the rings always face up

 

[CameronPerdue]

She's all back together and running crisp with this new porting! She yank the arms now! 180/180 psi after 3 hours on engine


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[iangdesign]

 

[DirtTOwater96]

Sorry for bringn up a old thread but this made me lmfao. And who did u have port your motor