31mm Ball Milling Cutters for cylinder head channels porting

Hand milling cutters/ spherical cutting for cylinder-head porting at home and is something a novice can accomplish to wake-up engine power.

– material HSS
– HRC 62±1

Specification:

– cutter – 1ps.;
– mandrel L200 – 1ps..

 

Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve their air flow. Cylinder heads, as manufactured, are usually suboptimal for racing applications due to being designed for maximum durability. Ports can be modified for maximum power, minimum fuel consumption, or a combination of the two, and the power delivery characteristics can be changed to suit a particular application.