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Detroit 353 diesel -- aluminum block?  How to tell?

I'm looking at a nice little fishing boat/cruiser with a Detroit 353, only about 1000 hours on it, runs great. I know this is one of the more reliable diesels ever made, but I have heard some not-so-good things about the ones that came with aluminum blocks. The boat was built in 1987, so the engine is at least that old. The owner doesn't know much about it.

Is there a way to tell which version it is?

Thanks,

Bob

Aug 19
Dunno about Detroit Diesel in particular, but in general I know that an aluminum block engine will last forever if it's designed right (i.e. if it's not a Vega engine) and it's maintained right. "Maintained right" for an Al block engine requires a lot more attention to the coolant than Fe block engines, which is why so many die early deaths in automotive applications.

If, as mentioned in another post, they're running salt water through it's veins you can probably take it as "not designed right".

Tim
Aug 20
What are you asking here? How to tell if the block is aluminum or not? Try a magnet. 42

42etus
Aug 19
   

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