The gestation period for human babies is 9 months. Elephant baby deliveries can be 18 months plus. Somewhere in between is Mercury V6 & V8 four stroke production delivery. I have been waiting SIXTY weeks for my V8 ProXS to arrive. Went and saw Merc's new product tour truck in August 2018 and promptly ordered my new ProXS. Since that time I have been waiting, waiting and waiting. Merc HQ would not even respond to phone calls about my order and would defer any Q/A back to their "dealers". When I ordered in August 2018, Merc estimated the delivery to be March/April 2019. I've been told I will see my ProXS the beginning of October. We'll see.…...I have also learned that any non-stocked V6 or V8 Merc 4 stroke will require a 4 month lead time. You might want to keep all of this in mind when thinking about any re-power ideas.