Whats the deal with 340s?

yellow rose said
Well no, they are NOT 6 1/4 inch rods in a small block MoPar.

They are 6.123, which is a skosh under six and an eighth.

What's and 1/8 of an inch among friends?

Thanks for the correction. I looked at that earlier and didn't think it looked right. I corrected my post. tmm