airheadedduner
04-26-2004, 10:31 PM
My 440 kit was done by thumper racing, does anyone know if there sleeve is boreble? It is an 89mm, the piston I got from powroll is 89.5mm. The sleeve is about 1.25-1.5mm thick on the bottom where it goes into the cases so I would be taking .25 off all the way around. Any input??