DOHC Swap?

[91CRXsiR]

i have a SOHC , so if i were to swap in a 91+ motor how much do they usually cost? end up costing? and swap difficulty?

Yeah this is a good question. I am going to look at all my options for my 240. I have the KA24E and want to look at the full potential of it but also keep it in consideration to swap to a DOHC and then start from there. I plan on either of these routes seeing that in MA the emissions laws are strict and I need to use a good base that can be built up but still pass when the car goes for its inspection. The price for a KA swap would be awesome to know. How much it cost in full!!!