Hi all. New poster here. I am getting ready to put together the motor for my z28 and have a question on piston installation. It's been a little while since I built a motor but from what I can remember there is usually a mark or an arrow on the piston head which tells me to point that towards the exhaust.
I got a set of sealed power .030 over 350 pistons in an eagle reciprocating assembly and the pistons don't have any marks on them. I want to make sure I install them in the holes in the right direction. They are +5cc 2 valve relief flat top pistons. I have attached a pic.
I did a quick search on the forums and couldn't find anything.
Any help would be appreciated!

thanks

 

Look at the angle of the valves in the heads...

The eyebrow needs to be on the int side.

There should also be a mark that goes toward the front, usually a notch; might be on the left side of that piston in the pic, kind of hard to tell.

 

Thanks. That tells me that they should be installed with the eyebrows lowards the lifter valley on both sides.
I took them down to the shop to have them installed on the rods this morning and I am going to ask the machinst there as well.
I appreciate the info.