I am putting my superior Sleeve top end for sale. This top end is a 78mm bore. It was setup for a 10mm bottom end to make it a 611cc motor combo. This top end has made several 3.70's passes with the best being a 3.72. And has also ran a best of 2.81 in 200ft both the 300ft and 200ft times were at Sheltons Dirt drags. I am asking 800.00 plus the ride for cylinders, head,domes,pistons,intakes and reeds. I also still have the cases if someone is intersted in those as well I would throw them in for 175.00 if some buys the topend. If you have any questions please feel free to ask.