Good luck in finding a LZ14. Feral from datrats has been looking for one for years & has only just got a LZ20 head & timing gears recently. they are worth heaps of $$$$$. Same with the BDAs & they are still old school but man do they go & sound grouse. Why cant you use a newer twin cam engine & save a few bucks & time of trying to find one.
Have a look at
www.datats.com.au there is more info on LZ engines there then you can shake a stick at
Coops.