That is a Bay Window VW bus motor judging from the location of the dip stick tube. Not a 914 engine, but still a Type 4 engine. Bus engines had lower compression pistons and a mild camshaft profiled for torque. The engine serial number on Porsche Type 4 engines is on the top of the block above cylinder #3 near the center of the case for 1.7 and 1.8 motors. On the 2.0 Porsche motors, the engine number is near the base of the oil filler chimney area.
Watching this video reminds me of how much I learned rebuilding my 914. I know Ian's videos certainly helped me and there are others. I'd recommend 914world.com for knowledge/help and 914rubber.com for a lot of your parts.
