We extend to you a cordial "WELCOME ABOARD !" Come on in, make yourself at home, we are a friendly group of enthusiasts, and we also appreciate the classic Chris Craft Roamer, Corsair, and Lancer boats too , as they are all on the same family tree and share much in common ! Just start by posting a note introducing yourself to the group, that's all it takes here (we don't ask for or retain any personal information here, because our intention is to just "have fun and share information".
I don't know if this answers your question or not, but car heads have the water passages at both ends so a head can be used on either side of the block, but car intake manifolds only have the cooling passages across the front (opposite from the distributor). Circulated water exits the engine through the thermostat at the top of the intake (using a car water pump). To keep an air pocket from being formed, a common trick is to drill a couple small holes through the thermostat. The holes let the air escape so the water surrounds the thermostat and it opens properly.