Large brown one is a 1/4 scale raw casting version representing the block with no machining. Large gray one with heads is 1/4 scale but fully machined representation missing only threads in the bolt and stud holes. Can't print them.
Three remaining gray ones are 1/6, 1/8 and 1/12. I can print them in any scale within the printer's limits, but smaller the printing layers become more evident and holes start getting lost smaller than 1/12. Keep in mind all of these have all the water jackets and true to scale wall thicknesses.
Click on the thumbnail picture and I think it will take you to my Photobucket where you can see more by clicking around.
Flat32
