Thanks for sharing. I thought the ORCAN was LL3 based, but compared to the max and nova LL3 I came across it is not. I found out it is based on the Rex LR3, an older model that is not very well known. Engine case is squarish, not rounded by the carb like the LL3.
You are right that the LL3 can fit the 7604 rod. LR3 according to ORCAN cannot.
funny when i got my orcan i noticed it was LR3 based & i happened to have a new LR3 in my rc stock coincidence nice