Engines equipped with a high-lift (hi-ratio) camshaft can experience problems with the valve stem bolts. Due to the high lift, they can no longer reach the valve stem properly. In the worst case, they even partially protrude beyond the stem. These adjusting screws with pressure feet will solve this problem.
They have a diameter of 10 mm, while the original is 6 mm, and since the foot rotates with it, the valve will always reach the adjusting bolt correctly with a valve clearance that will remain stable for much longer compared to the original.
They are not only suitable for high lift or performance engines, but for all engines, as they are an improvement over the original. The wider base also minimizes the impact on the valve stems.
Comes with 4 adjustment plates (1.45 mm) for the underside of the rocker shaft. Due to the longer adjusting screws, the space between the valve and the valve stem has become too small, which is compensated by the adjusting plates.
Delivered without locknuts, use the original ones or better order a new set of locknuts (see options tab).
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