I noticed on both a set of Trickflow and Comp pushrods that I have, that one end of the pushrod has a slightly bigger oiling hole than the other.

My question is, does the larger hole go towards the lifter and smaller to the rocker or vice versa? Basically just looking for what is the best for valvetrain oiling.

Thanks.

 

Anyone know?

 

This is interesting. I have a set of older Trickflow pr's that I've had in/out of the Camaro about 6 times. I know for a fact they have the same size hole on both ends.

I'm guessing it wont really matter. They will only flow as much as the smaller hole will allow.

Mike