Sloper pistons

[Mike Farmer]

 
Some help please gents. I have been asked these questions and I'm completely out of my depth here.

Question 1. Does the Sloper and the Blue Star use the same pistons.

Question 2. Was the Sloper ever produced as a 550cc or indeed anything other the 500cc.

Thanks

Mike

[JulianS]

Question 2 - yes see brochure page below from 1932 similar other years I think - the side valver

[JulianS]

Question 1 - below from 1958 Hepolite catalogue may help answer if you can figure out the model codes!