I just had a new 5.7 MPI marine engine installed in my boat. I got 12hrs on it now and noticed that the 2 bolt flange gasket where it mounts to the engine is leaking just a tad on one side. Looks like the gasket blew out or got damaged some how. It doesn't leak when running, but I do notice a very small puddle of coolant that must be seeping out. It's very small the size of my pinky nail. lol The thermostat is on the very very front of the engine unlike my older 350 where it was 4'' back close to the carburetor. I wonder if it's separate on the new engine? it's just on a flat portion of the intake, if that's still the intake.