im swapping a y8 head on my cx engine........ now the y8 is 16 valve... and my crapy cx is 8...... now im not sure if my pistons have the dents in them for 4 valves.


1) does it matter that the piston doesnt have the grooves

and 2) if not, does it mater?



(dont mean to double post, but didnt know which one to put it in)