I had the gear box outa my SOHC on my sr for almost 2 years without a problem.

your exactly right you just have to swap belhosings, and as far as clutch/flywheel you have to use the motor specific one(if its a sr then use a sr and if its a KA then use ka)

its a pretty simple swap, took us a couple hours dicking around in a shop. there is a write up online somewhere