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Mack E6 Engine info request


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Hello,

I am looking for some information on the mack E6 engine. I will like to buy a mack with an E6 Mechanical 12 valve engine (2 valves per cylinder). I have been reading that some E6 Engines may have 4 valves per cylinder head. Is this statement accurate?

What year macks R model or D models would carry the 12 valve all mechanical E6 engine.

Thanks

OO

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The Carbon/Sludge build up was so bad on the 4 valve mack motors up around the valves and rockers, that if i had a choice i would have a 2 valve.. they where always so much cleaner when i tore them down... just my opinion

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