Alright so I'm doing my first rebuild and one of my pistons has a crack in it so I'm gonna get a new pair of stock pistons. but theirs a problem i don't know if i have to get the set A or set B. Anyone know how i can find out what ones i have? I have everything apart but I'm kinda dumbfounded on what ones to get. After i find that out i can start ordering parts finally! Thanks in advanced!

 

With the cylinder head off, you will see which pistons are A or B by looking on the top rear of the block (near the firewall) on the timing belt side. Left to right is 1234

 

Alright thanks!