Originally Posted by DRfrank
ah yes, then the b20 must be 84, i remember one of them at least being 84, eh, o well...i still say just use the money to buy a c5 or bore it out to the size of a b20...
Yes, it is the B20 that is 84mm. If you want to do it right, you can bore it but then you might as well sleeve it since the walls will be very thin after boring to that diameter.