Oof, looks like the floor is still in the way. You *can* probably reach from the front, but it will suck. Have some spare plugs handy for when you drop them in the bilge and a magnet won't pick em up. Good luck with the spark plugs.
Thanks! I’ll give that a try. I appreciate your advise.
On my grandfathers Penn Yan - you removed the seat cushions on the rear seats to access the battery and trim pump. On the vertical wall of the seat base there were 4-5" holes cut to access the oil filter and the plug for the boat as it was in the hull bottom not the transom. couldn't see anything but you could feel them. That solution would work here either with a oscillating tool or hole saw cut your self an access hole near where drains are on manifolds one on each side . they make remote oil filter kits as well.
Use a mirror to find block drains or you will have to remove manifolds/risers. I live in NW Florida where now it seldom freezes. Back in the day, when it did freeze from time to time, we wouldn't pull OD until spring in prep for the next season or bugs would have another access point. Some would try to fill blocks with anti-free after completely draining exhaust manifolds and risers but most of us would just add a couple of shop lights for the engine compartment if we had freezing weather coming. I don't recall any boat catching fire due to a shop light. Norther climate can be an entirely different monster.
