1974 Chrysler Conqueror SuperBee III Speedboat

Length is 18'6" Chrysler was really bad at documenting in the boats, we have never been able to come up with production numbers, and I am good friends with 3 of the 4 Chrysler designers that were at the Plano plant and designed these boats. The person I bought the boat from said it was, and I have never had it apart, but I can't say for sure before me owning it. Finding a 340 version is really hard as they only made the S-III with the 340's in 73 and then the very early part of 74, mid year the 360's were used, thru the 77 year when the S-III was dropped.