Hi All!

I am in the process of building a few 2.3t motors and I am trying to mix and match pistons. I remember reading a thread on here about the stampings on the block next to the distributor. My engines say "3343" & "3443" etc... I know this relates to the bore size and pistons. Does anyone have any info on those stampings. I.E. "1" equals small bore, "4" equals big bore.

Rob A.