Cylinder Works 20003-K01HC Standard Bore HC Cylinder Kit

Perfect for when you need to replace a tired, worn out, or blown up engine and want a bump in power, this Standard Bore High Compression cylinder kit increases the compression to 13.5:1 from 12.5:1 for more horsepower and torque. The cast aluminum cylinder is Nickel Silicon Carbide (NSC) electroplated, providing a durable, low friction, wear resistant surface with oil retention capabilities, and allows for greater heat dissipation to the water jacket. Cylinder Works kits come with a Vertex piston that is forged for superior strength and durability, and is molybdenum disulphide coating for reduced wear and faster break in. Kit includes cylinder, piston, rings, wristpin, circlips, and special gasket kit with full instructions. Plus, no machine work to your engine or cases is required. Fits: Yamaha YZ 450F 2006-2009, WR 450F 2007-2012.

• Fits: Yamaha YZ 450F 2006-2009, WR 450F 2007-2012
• Perfect for when you need to replace a tired, worn out, or blown up engine and want a bump in power, this standard bore high compression cylinder kit increases the compression to 13.5:1 from 12.5:1 for more horsepower and torque
• The cast aluminum cylinder is Nickel Silicon Carbide (NSC) electroplated, providing a durable, low friction, wear resistant surface with oil retention capabilities, and allows for greater heat dissipation to the water jacket
• Cylinder Works kits come with a Vertex piston that is forged for superior strength and durability, and is molybdenum disulphide coating for reduced wear and faster break in
• Kit includes cylinder, piston, rings, wristpin, circlips, and special gasket kit with full instructions; plus, no machine work to your engine or cases is required