Vertex - Piston Kit Bb Forged 79.95/+3.00 13.8:1 Yam - 24405A - Big Bore Piston Kit
- All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
- Forged Big Bore pistons increase engines displacement, torque, and peak horsepower
- All pistons are heat treated with a T-5 hardening and tempering cycle
- Kits include piston, rings, wrist pin and circlips