sohc verses dohc

[wynnbricky]

Hello this is my first post. I recently restored a k3 chopper in an amen frame. I am building a bobber with another amen frame and have removed a bad k2 sohc motor. ????? My question is will a newer dohc motor maybe an 80 or 81 mount in the frame the same as the k2? also is there good reason to prefer the dohc or should i replace it with the single??? Thanks for any advice.

[Re-run]

Well the sohc is a simpler engine to be sure. It also enjoys pretty good after market support.
There is not much power difference between the 2, the dohc might win out by a couple hp when everything gets to the wheel.
I think the sohc engine lends itself better to old style chopper looks better and is virtually bulletproof.

What is bad about the k2 motor? Is it frozen or got a large hole in it?
If frozen, take out the plugs and pour in some penetrating fluid and let it sit a few days and then try to break it loose. I guess it mostly depends on how much work you want to do on the engine.

[wynnbricky]

thanks for the input. the engine that came out was hit and tore out of the mounts. the case is toast and too many miles on it to look for a new case.

[buttcan]

The motor mounts with the exception of the top front mounts I believe are the same. Should fit with minimal effort.