BMW E30 318is - E36 318is - 318Ti Compact

Bronze valve guides kit for BMW E30 318is - E36 318is - 318Ti Compact engine M42B18.

The valve guides of SUPERTECH manganese bronze, which is an alloy of manganese and zinc, as well as aluminum to give further strength to the material.
Manganese bronze is a high strength alloy that is used for parts that are subjected to a high stress load.
These valve guides have a high resistance to wear and are designed for a higher coefficient of thermal transfer, highly recommended for all types of preparation of high performance engines.
*Complete set of intake and exhaust.

Engines:
M42B18
Measure: 
OD - 12,56mm
Height: 43,30mm