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From the picture the exhaust isnt water cooled. The motors are set up to dump the exhaust straight out the motor. OK if you run inboard /outboard set up with the motors in back but has several disadvantages for a pure inboard motor setup that is mounted in the middle of the boat. Run that exhaust ou...

Not with a water cooled exhaust system. Don't even think of trying to run with out the water in the exhaust either! Bonfires in the middle of the lake are a pretty sight unless you are the wood provider.

Most of the blown motors that you see in drag boats are car 426 style motors adapted to marine use that keep the car water pump assembly. With a 331 354 392 marine motor there are no pulleys or belts used to drive anything, everything is gear drive. The gears are located in between the motor and the...

What I asking is how do you block off the lower holes of a marine engine block if you use it in a car? I have never seen one used in a car and was just curious how it was done. Thanks for the info.

What hooks up to the two coolant lower holes in the rear "car front" of the block when it was used in a truck? I have a marine block in my garage as a spare for my boat and the block has extra coolant passages in the block.

A marine block and a car block are different in several ways. Most do not have motor mounts on the block. the cooling pasages are differnt [the marine motors have extra ones in the block. The crank is different also because it is designed to drive the boat off of the normal "front " of the...