so a buddy of mine told me he took a 350 out of a truck and put it in a boat. he says its never touched water but if thats so how does it cool itself. boats dont have radiators, do they? if so would it be possible to put that 350 back into a vehicle?
boat swap
- Thread starter regalman85
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no radiators on boats. i believe it is a different water pump used that picks up outside water. Manifolds would be different i believe, thats all i really know.
A lot of boats are raw water cooled but more and more have sealed cooling systems with a heat exchanger that only uses raw water to cool it and the engine has a 50/50 mix of coolant just like a car, plus if it wasn't put in the water you just put ear muffs on the water intake and hook the garden hose to it to cool it on land. :wink:
Yes, most older boats just circulate lake/ocean water. They do generally have a water-cooled exhaust manifold and a back-fire arresting carb. Some have better sealed ignitions, etc. In the end, they are just an engine. However, many don't have accessory holes so double-check that out and if you are in an emissions state, you may have to consider that as well.
If you do use it on a sealed system, make sure to flush it real well because all the mud and crud could still be in the block water passages. Also, there have been a LOT of broken blocks over the years from idiots that don't properly winterize their inboards so you should hook it up to a water cuff and test it out.
On the plus side, many marine engines are higher performance than their land counterparts thanks in large part to formerly not having any/many emission standards to meet.
If you do use it on a sealed system, make sure to flush it real well because all the mud and crud could still be in the block water passages. Also, there have been a LOT of broken blocks over the years from idiots that don't properly winterize their inboards so you should hook it up to a water cuff and test it out.
On the plus side, many marine engines are higher performance than their land counterparts thanks in large part to formerly not having any/many emission standards to meet.
If it was a closed system with proper coolant then it's no different from being in a car. But if it was raw saltwater cooled, forget it. Even raw freshwater will rust the block as it sits, but nothing is worse than saltwater.
There are also reverse rotating marine engines, they use a reverse pattern camshaft. In the case of my Donzi, both 540's were standard rotation and the counter rotation was accomplished by reversing the outdrive and prop pitch, which is pretty much the standard way now. Just thought I'd throw it out there. Some boat engines are heavy duty internally and have performance cams and fuel systems, others are basically car motors with a sealed ignition and flame arrestor and wet manifolds. :wink:
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