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if the boat can be put on a lift or a trailer, do so. it is much much easier than sitting in the water.
there are several configurations on marine engine as to winterize them. newer, simpler engines have a blue knob in front near the top of the engine which is connected to a valve. all the hoses on the thermostat housing and each exhaust manifolds run to this valve. for these, remove the blue plastic plug on the thermostat housing and open the valve by turning the knob counter clockwise until water runs out at the bottom.
some boats have a similar configuration as said above but they do not have a blue knob or valve. but they have a manifold collection at the bottom of the engine in front which has a blue plug in it. remove the plugs at the bottom of the engine block. they will be the blue plastic plugs, and some have a knock sensor. also, at the bottom of the water pump a big hose goes up to the thermostat housing, and there will be a blue plug at the lowest point of the hose. remove it
then remove the plugs on the back or bottom of the manifolds depending on the manifolds. some engines, which have v-drive transmissions or those that are mid engine boats, have a hose which runs between both exhaust manifolds. disconnect the connection in the middle of the hose to drain the exhaust manifolds.
if the engine has a raw water pump which feeds lake water to the engine, either remove both hoses without confusing there connections or remove blue plugs if equipped.
for older boats, which have a raw water pump in the outdrive, take off all hoses from the thermostat housing. do not mix these up, label them if needed.
take off the big hose that goes to the water pump
if the boat is equipped with a water heater that runs off the engine, remove these hoses. they will be 5/8" hoses; one starts on the top of the engine water pump and the other starts at the top of the intake manifold. if so equipped, remove both ends and blow through one until all the water comes out the other hose.
i believe i have mentioned everything needed to drain the entire engine. if desired, non toxic antifreeze or RV/marine antifreeze can be used to fill the engine, for added safety.
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What do the numbers and prefix in 327 Chevy mill mean?
You mean what does 327 mean? It's stands for 327 cu. inches. As in the displacement of a motor.
Do you have to replace a coil when replacing electroinic ignition in a 327 chevy motor?
no
Is a 2000 silverado 5.3l a 327 or 350 motor?
The Chevy 350 is 5.7 liters the 327 is 5.3 liters
Does Chevy have a 302 motor?
Chevy built a 302 in the late sixties. It used a 327 block with a 283 crank.
Will a 350 Chevy intake fit a 327 Chevy motor?
Yes it will, if the 350 intake is from a pre-1987 engine.
What size motor is a 5.3L Chevy motor?
The 5.3L engine would equal aprox 327 cubic inches.
305 Chevy block with a 327 crankshaft stroker motor?
That would be a destroked motor, and would result in a 285.
Will a intake manifold for a 327 Chevy work on a 350 Chevy motor?
Yes it will as long as the 350 engine is not newer then a 1986
What were 327'S put in?
327 is a Chevy motor. Mostly put in a older Impala or older Malibu, But you can do swap and put it in anything that has the same set up.
Chevy motor with casting numbers 3970010 a 327 or 350?
That should be a 4 bolt main 350
What type of oil is used for a 1966 327 Chevy motor?
10w40 would be a good choice for this engine.
Will a Chevy 350 intake fit a 327 motor?
Yes it will, if the 350 intake is from a pre-1987 engine.
