pistion direction

[Mclarenfung]

any1 know the arrow side is intake or exhaust

 

[OssPoop]

Correct.

 

[R3k1355]

This seems like a question you'd ask the company that made the pistion

 

[JayA]

Intake valves are generally bigger than exhaust valves so whichever pocket is larger will likely be intake. However I too would be asking the company, not worth gambling!

 

[JamesBryan]

Arrow towards the exhaust, usually.