Thanks for that, thats awesome info!
Will order the parts tomorrow, as well as making a trip to the steel store. I need to make new engine mount brackets - the stock setup leaves the cylinder heads 200mm away from the firewall, does not give hood clearance, and interferes with the steering. The block allows me to put new mounts in the next 2 bolt holes forwards, so it's a good chance to lower the engine a bit, move it back and do the driveline alignment all at the same time.
Driveline alignment is a new concept to me, however theres lots of info on the net. It seems this website covers all I really need to know
DRIVE LINE PHASING