I think, with simple logo, easier to 'read' even in small size. also easier to produce (i.e, for decals). but if you want to, I can make it. thank you.
Well i like the direction that your taking it but the shape of the engine does not match up with the shape of a kseries engine. Try using this image to get the shape and design focusing on the valve cover oil pan to make it noticeably a kseries engine.