- Stock #318926 - Lowrance marine GPS, Lowrance marine radio new in the box, new chairs and seat cushion, Magma stainless BBQ grill NOTE - See the "Information on Condition" section section below for current status of the vessel. Following the success of the wildly popular Silverton 34 Convertible introduced in 1978, the Silverton 40 Convertible was introduced in 1985 as an easy and familiar upgrade for brand loyal customers and was produced for six years until the introduction of the Silverton 41. Powered by a pair of big-block, fresh water cooled Crusader engines with proven Borg Warner... read more