I recently had these on craigslist with the matching head. I ended up seperating the auction and sold the head to KP.
These came with a chopper project. When I originally built the chopper I was not aware that the top end was a sandcast. The case was a replacement case. This includes a chain tensioner and the rubber chain track thing. I am not 100% certain that the tensioner is sandcast or not.
About this part!!! The lower left thread that holds on the tensioner was retapped to 7mmx1 from the standard 6mm thread. The hole for the tensioner was also slightly drilled out to accomadate the 7mm bolt.
The bolt that holds the tensioner pin was also replaced with a 1/4x20 or 28 (cant recall). Point is that it is not a standard 6mm bolt either.
The pistions are not the best condition and have some pitting. I was originally running this set until i stripped out the sparkplug hole on the matching set (this was previously sold to KP). The rings have 3000 miles on them. I originally honed the holes and put it to gether and it ran good. I decided to remove these jugs when i swapped the head for a diecast.
My email is wbass77@gmail.com.