I just ordered a 12TZ from Japan, $166 S&H included.
I was also wondering if it would be wise to put ceramic bearings in. Not for the performance, but more for durability.
They are $75...that would raise the price of the engine 50%....
http://www.bocabearings.com/main1.as...earchkit&cat=2
There's also a $30 ceramic set....wonder what that is...and why the price is so much lower.