Crankshaft to Crankcase clearance

[Eoin70]

im just about to prepare my minarelli crank cases so they can hold a 44mm crankshaft, can someone tell me what is the minimum value for the clearance i need between the crankshaft and the crankcase?
its a 2-fast crankshaft on c4 bearings

 

[Swobber]

Its written in the papers that comes with the cylinder.

It was in mine (Piaggio engine).

/Swobber

 

[tiba_karotsu]

it says to bore the carters to 76mm i think, i know you're waiting in line for a 2F4R kit b'coz i also have a customer who's itching to get his hands on one too.