As the title suggests, I picked up a 750E block, and a set of 26mm mikunis a few years ago with the intentions of doing the 810cc upgrade at some point in the future.
Never did get around to it, and since I've been maybe putting 1k kms/year on my bike for the last several, it looks like I'll be dead before it wears out the current set of pistons/sleeves.
This is the block with the correct cutaways for the non-hyvo (peanut?) style timing chain. So, unless you are planning on swapping in an entire 750 engine to do this particualar swap, this is the block you want for early (pre-hyvo) 650s.
I'll get some photos up if there is any interest, and have a look around for what this might even be worth at this point. Not a lot, I am sure, but for someone looking to retain the appearance of a '650, it's the most stock way of going about it I know of.
Stuff it located in Niagara, ON, CAN. Pickup clearly preferree given the weight of the thing, but shipping can certainly be arranged at buyers cost.
Cheers all!