need help o-ring??

[hello]

I got a gesket set of ebay but there are (2) O-ring (aluminum/not plastic) that I can't figure out where they go its not the cam seals. Any Help would be great.

thanks

 

[t3t4delsol]

a picture of the o ring would help, also which motor?

 

[hello]

sorry, it's for a b16a. its the silver one to the left of the exhaust manifold gasket.