Magnum Engine Swap on C-81

[Solex 27]

I plan on switching out the 8HP K series engine with an 8 HP Magnum engine. One thing that I noticed was that the C-81 features an engine cradle and the hole for PTO rod housing or C hoop is incorporated right into the engine cradle. The Magnum came off a 300 series and the bracket for the C hoop is mounted directly to the frame,  therefore it sits a bit lower. I guess as long  as the Magnum PTO pulley location and mounting holes are the same, I can just mount it on the C-81 mounting cradle. That way I can use the current drive belt? Are there any other issues I should plan for?

[slammer302 2,154]

I would use the the oil pan from the original engine then you can use the factory cradle and everything should go to gather easy

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[DennisThornton 4,769]

I would use the the oil pan from the original engine then you can use the factory cradle and everything should go to gather easy

 

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So the K series oil pan will swap with the Magnum series?

[gwest_ca-(File Mod) 10,529]

If the K-Series engine has battery ignition the Magnum will require a different ignition switch and wiring.

Garry

[slammer302 2,154]

As far as I know the magnum 8 oil pan will swap with the k181 oil pan

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[Solex 27]

Thanks for all the feedback. I never even thought about switching out the pan. In terms of electrical, I plan on buying a universal wiring harness. The M-8 has only 3 wires that come from it, and this tractor appears not have any of those pesky PTO kill switches. However, I have not looked at a wiring diagram yet.