you are brave I wont even buy a quart of oil from aqua tech! good luck I would imagine if you are doing the work yourself there shouldn't be a problem but I wouldn't give them my money.After reconsidering all my options, I ordered a mercruiser long block from Troy at AquaTech Marine here in Bremerton today, be here Tues or Wed. All Merc parts including oil pump, oil pan, water pump, rear seal, timing cover and valve covers installed, all of which I was going to replace anyway, for 3k. Merc pre runs their remans and already has oil and filter installed.
Today I disconnected most of the interference, fuel line, throttle and shift cables, alternator, exhaust boots and wiring harness. Tomorrow the starter cables, hydraulic steering hoses and engine mounts before lifting it out. Praying for a little less rain on Sunday.