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Engine Swap

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I have a Allis Chalmers 416 garden tractor with the shuttle drive. I`m thinking about swapping the 16 hp for a 28 hp Onan engine. Could I do this without any problems? Any information will be appreciated.

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I have an Onan on a welding machine. great engine. A new carb was cheaper than the kit for it last year. Oil filter was around $25 at the Onan parts store, Wix filter only around $8. Don't even think about the fuel pump! If yours 'leaks down' between uses, and the pump will not pull enough fuel up without wearing the starter out in the process, I have a great fix for it, instead of buying a new pump right off the bat. Any of you Onan users want to know it, send me a PM

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The 28hp Onan is HUGE and Heavy. Better consider power steering with the swap. I can't picture how to make that engine fit without a lot of cutting away of the existing frame.

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