Let's look at the Duromax 440 big block small engine. The Duromax 440 is based on the Honda GX390 but has a bigger bore.

The Duromax 440 would be a good engine for a number of small industrial application like a sawmill, a cement mixer, a snow blower, etc. With some small modifications, it would be great in a gokart or larger mini bike. Let me know if you have any good ideas where I should use this engine.

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