Lloyd’z Indian 121 Cubic Inch Big Bore Kit

Increase the overall power of your Indian Motorcycle with our 121″ big bore kit, designed from high quality ductile iron sleeves and lightweight forged pistons to give the best overall power and reliability. In order to perform a 121″ B.B.K. for your Indian Motorcycle, we will need to have your cylinders sent to us. We will utilize your existing cylinders, and with our exclusive techniques, machine them out and install a set of Ductile Iron sleeves, torque plate and fixture hone them to each individual piston’s specs ensuring every piston to bore has the same clearancing specs. We then machine the tops of the cylinders and finish off the surface with a 400 grit lapping to make the best possible seal available. Our piston design has many years of Research & Development involved to yield the best possible performance and reliability. Our 121″ kit is comprised of a 105.28mm bore with 2 lightweight forged pistons (complete with Rings, C-Clips and Wrist Pins),  2 Head Gaskets, and 2 Bas