

These are the cylinder frames. Both ends get the bolt hole pattern that matches into the crank case. My biggest problem was to figure out how to orientate the hole and slot into the correct position to the crank case. As you can see in the other pic the solution was not that difficult. The frames get a slot and hole machined in each and in keeping the hole to a nice size, the 7/8" TGP rod made a perfect orienting device.