Before I say anything else, Yes I know the z3 is a better head, slightly. But I wanted to know is there anything else besides the IM that i need to change out to make the a2 head work in the 08 SI's. Long story short, I have a built k24/k20a2 that i want to put in a fa5. So any info on this will help.

 

you will have to cut your RBC manifold to fit.

http://www.karcepts.com/index_files/...structions.pdf

you will also need a CRV mount, dont remember if it's the driver or passenger side. all the Z3 sensors and wire harness need to be swapped onto the frank as well.

 

Thanks, thats what I thought also. I just wanted to be sure and not run into any problems down the line. Thanks agian bro.
If anyone knows of someone that has already done this swap. point me in that direction. thanks.

 

I would upgrade to a2 oil pump and chain also!

 

He should have that already if you read the OP.