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fastcr500

426 head on a 400?

3 posts in this topic

Will a 2000 426 head bolt up to a 99 400 cylinder? What about just slapping a whole cylinder and head from a 2000 426 onto my 99 400 bottom end? I have a cracked head and piston and need to figure something out due to the lack of 400 heads running around ebay.

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The head will bolt on, but you'll have to drill and tap for the fitting for the hot start hose, or use a 426 carb. In order to use the 426 cylinder, you have to rebuild the crank with a 426 rod, since the wrist pin in the 426 piston is larger.

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