Yes there is! On some pistons there is a big F right near the wrist pin.
On factory standard there is
the sizing mark (a diamond with a 1,2,3 or 4 inside) On oversize, the size
goes toward the front of the bore.
Jim
Dan and Louise Yates wrote:
> Is there a front and back to the pistons? I can't notice a difference but
> I've seen postings referencing the front or the back of a piston. The only
> difference I can think of offhand would be if there were oil holes that had
> to match with the rod bearings.
|