BS1493 - LIFAN 125 Cylinder Head Kit with 27MM & 23MM Valves

This complete Cylinder Head set is designed for 125cc YX and Lifan engines and includes 27mm and 23mm valves.

The BS1493 is a comprehensive LIFAN 125 cylinder head kit, engineered as a complete drop-in assembly for 125cc YX and Lifan horizontal engines, making it an ideal solution for both engine rebuilds and performance upgrades. This all-in-one kit includes a fully assembled cylinder head, pre-fitted with oversized 27mm (intake) and 23mm (exhaust) valves that facilitate a significantly improved flow of the air-fuel mixture in and out of the combustion chamber. By increasing valve size, the engine can breathe more efficiently, which directly translates to gains in horsepower and torque, especially when paired with a performance carburetor and exhaust system. Supplied with all necessary components like the camshaft, springs, and seals, this kit provides a hassle-free path to restoring engine compression and vitality or building a more powerful motor, eliminating the need to source individual parts.