Have you searched on hybridz.org? prob lots of experience of that combo there.
I was going to do this in my first Z...bought the jagthatruns kit to do it... of which I still have. Welcome to buy it?
I ended up going LS1 and T56.
Dan
Have seen the Jagthatruns kits, Where abouts in the world are you Dan ? I'm over in the UK
Also in the U.K. mate, just near atherstone/Nuneaton.