3.5 / 3.9 / 4.0 / 4.6
Cylinder Heads

These cylinder heads are ported to the third stage of development, details of this can be found on the HeadPorting page. As with the standard refurbishment they have been acid dipped and cleaned, skimmed a minimal amount to ensure flatness, guides are removed and replaced with late type sintered steel guides with a stepped top for the late type neoprene valve stem seal. The heads are fitted with new uprated double valve springs, new valves, caps and collets. The valve seats are re-cut and then lapped in.


Exchange Item required

Outright Surcharge £195


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