i was just wondering if someone could tell me i have a v one sII with an os max .12 tr(p)-t but i want more power and want to put in the os max .21vz-r, but is the pilot shaft on both engines the same size so i can use the same clutch??

My next door neighbour has a cen ct4-s and whips me so i think this should even things up a bit what do u think??