2 reasons on the top of my head..
the first reason, the engine was swapped..for a new project..
or, if you're like me
it's taken sooo long to build the buggy, if I wait for my 1.9 liter with single carb, side draft with turbo, it's gonna take a couple more years.. I can wait, or start driving with a 1600CC!!!

you must have pride....in your ride....