These silicon aluminum bronze guides are the answer to guide wear of the cast iron. With the arrival of "low" lead gasoline, it is advantageous to use a guide that will compensate for the lack of lead as a lubricant. This guide is the answer for street or competition. The guide has the machining for using the umbrella seals of the 1275cc. Sold as a set of 8.
Valve Guides - Set - 948cc,1098cc,1275cc