[Dave at Pelican Parts]

Check here for pictures of the parts you should have:

http://www.pelicanparts.com/914/parts/engine/cylhead_sheet_metal_large.htm
http://www.pelicanparts.com/914/parts/engine/engine_compartment_sheet_metal_large.htm

You need all of those parts. Otherwise you will kill the engine in relatively short order. Also make sure you get the thermostat flaps that go inside the engine tin.

--DD