New cases WILL NOT be cheap. You're looking at around 1200 bucks!!!! -----------wanna talk about expensive. try a 73mm cheetah pistons............
The 87 crankcases supersede to the ones used on the 88-90.-------------come agian
Where is the clutch basket shot? Aluminum or steel?-------looked like a stock basket. aluminum i believe. the rivets had been worn so badly the primary gear can be moved around
The balancer doesn't need to be updated to work in different cases. An 87 balancer MUST be used with an 87 seal, and the same with the 88-90 balancer and seal.--perfect!
If you are going to put inserts in anyway, get a good used set of cases and save big time money!-----------------------------no such thing as good used cases. this is a 2013 motor
A cool head can be used with O-ring, but the coolant passages must be modified to flow correctly in the correct areas.-------hopefully this will be part of the porting.
From what I recall, the cool head dome can be modified with a decomp release, but I'm not positive. --------yea i broke my shoe in half when i had it together.
That cylinder looks like the head area has been decked quite a bit.-----------------why do u say that
That sleeve looks kinda thin too. What's the bore at?----------------------------------never measured, i though it looked pretty normal
You should get the cylinder modified to use 88-90 head studs.-----------------------forgot to add that. this will be done forsure
Legend has it that the 87 cases didn't have a steel insert for the MAG side, and the 88-90s did, but I can neither confirm nor deny this.----i did notice a insert on the mag side. i though this was weird.
And if you want a reliable Zilla, many more things should be addressed.-----------------------like what, remember this is suppose to be a stock engine beside maybe carb/pipe combo. all im trying to accomplish with the "2013 motor" is make it so i can take it out deep into the wood/dunes and not need a tow rope. im sick of having a banshee with 95 hp and 99 problems. ya feel me? a wise man would say, buy a 4 stroke. no thanks...maybe a ltr450....maybe

     

i have a butload of parts laying around in boxes. gotta see what i wanna use and or ditch. forsure though