Point Cloud of the 250 CC 4 Cylinder Engine

The following is the point cloud of the 250 CC diesel engine we derived with the help of the FARO ARM. 
The point cloud consists of approximately 18000 points in 3D space. 
The point cloud we generated is imported into SolidWorks and a pattern could be generated as shown below.

Problems:

1) The problem we are facing right now is understanding to generate a solid 3D model out of these point cloud.

2) We were able to generate a surface using the Mesh Prep Wizard option but could not make it perfect enough to use it for further analysis.