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#1
04-06-2026, 05:19 PM
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Engine swap question
I have a cub 3204 with a CH20 blown engine and I found a parts gt2550 with a CH670 engine. I'm fairly sure it's a direct easy swap. Maybe exhaust needs changed, but everything else bolts up, plugs in. Am I correct? It will be the first full engine swap I do on anything this big, so don't really want to mod anything crazy. They both go to the same service manual. I just want to confirm I'm not missing something out of inexperience
https://resources.rehlko.com/engines..._690_06_EN.pdf 
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#2
04-07-2026, 04:18 AM
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I'm pretty sure that would be an easy swap. The 3k's are different than the 2k's so you will need to reuse the muffler, manifold's, pto system and a few other things I'm forgetting. You will need to see where they pickup the vacuum for the 3k pto. It probably has a fitting on the intake manifold for the 3k machine but I'm not sure the 2k will have it.
Here are some free manuals if you don't already have them. https://www.ccpartsnmore.com/cub-cadet-product-manuals Good luck and if you have any questions we are here to help.
__________________
This ain't no hobby....it's an addiction
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#3
04-07-2026, 11:09 AM
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Appreciate it. Thanks
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