rffy

iTrader: (1)

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

sofakingdom

iTrader: (1)

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.

rffy

iTrader: (1)

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.