[400 Lemans]

Originally Posted by TRADERMIKE 2012

Look up at the number one Rod where the Crank Pin meets the Rod, the # 69 exists, this raised area points to the number 69 and on this particular Piston to Rod group the notch is on the same side on the Piston, that is the only difference on these Rods from one side to the other and they are cast, because I can see the cast line on the edge view from the side looking at the bolts that hold the Cap to the Rod itself. These are "not" Forged Rods. It has been established that the number 1&2 Groups of Piston and Rod are orientated correctly, now that I have viewed all eight lined up with the Spurt hole up, that gives us the correct way that the hole system is viewed upside down on a flat table looking down with the viewers eyes. The other six Pistons are facing the rear # 3-8, which means that they would have to be taken apart at the Wrist Pin and spun 180 degrees on the Rod and the pins reinstalled, this is what I think, correct me if I am mistaken.

I tested each Rod to Piston Wrist Pin and tried moving them every way possible and they just rotate as expected. A careful look at the way the Piston gets oil through the oil ring groove for one thing, then there are Wrist pin filler ports on the sides of the Wrist Pin and drainage dumps at the bottom of the Wrist Pin ends under the Skirt area. Very thoughtful I would say.

The 3-5-7 pistons and rods just need to be installed in the 4-6-8 bores with the notches to the front and vise versa. That will put the pistons and rods back in the right orientation. But you will probably get new pistons anyway.