Hello,
I know it's not a supra but I wanted to get some info out there for anyone else looking into a boat like this.
Did some trading for an old Ski Supreme a while back, was pleased to find out someone ordered the boat with a Chrysler 360 since I've been a Mopar guy my whole life and have always wanted a Chrysler powered boat. Looks like this unit had a oil pressure switch failure which ruined the motor. While cranking the motor with the plugs out oil shot out of the switch so I'm making some assumptions. The previous owner was not driving the boat at the time of failure. I happen to have a magnum 360 on an engine stand already that I'm thinking about shoving in, will have to work through a few issues but its been done. Was slated for an old ram van but the LA 360 out of the boat my take it's place.
Anyways, here are some photos for anyone interested.
Big thanks to Mischief IV who sent me some shots of the 1991 water ski mag review of this boat. I honestly thought someone had swapped the factory Merc 5.7 out for the 360 until I saw it was a factory option.
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Will upload more photos as I work through it and have time.