Custom Cycle Engineering Finned Rocker Covers For Harley Custom Cycle Engineering Finned Rocker Covers embody the perfect blend of originality and performance, inspired by Randy Smith's design. Manufactured in the Usa, they are precision machined from high-quality aircraft-grade billet aluminum alloy, ensuring a fit compatible with both early and the latest breather systems, plus ample clearance for high-lift cams and all factory frames. These rocker covers stand apart from lower quality versions by resisting warpage and oil seepage. Each set comes complete with polished stainless button-head Allen screws and washers, streamlining installation. Features: Original Randy Smith design Top covers only Features a guaranteed fit and are compatible with the very latest breather system (early breathers too) Include adequate clearance for all factory frames Domestic aircraft-grade billet aluminum alloy, fully machined and polished Are not subject to the warpage and oil seepage that die-cast imported copies are The undersides of the covers have been machined for additional clearance which will accommodate virtually any high-lift cam Polished stainless button-head Allen screws and washers are also included Made in the USA