I have a dohc swap in a 90 240 and i was wondering what it would take to get the a/c working. I was told that all i need are the 2 main lines from a dohc. Is that true or are there other parts that i need? Thanks.

 

This is not true. The line running behind the motor is a different diameter with different connectors. The condensor connection is different as well.

You could get custom lines made, but it would be easier for you to fabricate a lower compressor bracket and hang the SOHC compressor.