These RHSalve Covers are the perfect addition to your performance engine. The sleek and durable DuPont black-wrinkle powder coat finish with a polished laser etched logo is sure to provide that performance look you desire. These valve covers are perimeter bolt style and include two chrome breathers with laser etched logos two black rubber grommets and installed baffles. The installed baffles are welded in place to ensure no oil enters the breathers. The chrome breathers are present on both valve covers which allows for proper crankcase ventilation. In addition these covers were designed tall enough to provide necessary clearance to accommodate aftermarket valve trains. They are manufactured and packaged in the U.S.A. Also available is the SBC billet aluminum adapter kit that enables mounting traditional Gen I Small Block Chevy valve covers on a Gen III/IV LS engine. Specifically the adapters work with center bolt LS heads and perimeter bolt traditional SBC valve covers.