Comp Cams FS HIGH ENERGY ROCKER ARM 2017-ford-f150-esi9044799 Do I need to ceramic

Do I need to ceramic coat or paint these before bolting them on

Will this plug straight into my existing wiring harness

or seals from an old hub before installing

It’s a quick and easy swap

2006-2017 Volkswagen Passat CC OEM Replacement Radiator 3

Comp Cams FS HIGH ENERGY ROCKER ARM 2017-ford-f150-esi9044799 Do I need to ceramicHigh EnergyT Steel Rocker Arm: Ford; 3 8", 1. 6 Ratio This COMP Cams High EnergyT Steel Stud Mount Rocker Arm designed for 1968 77 Ford V8 289 351W applications features a 3 8" stud diameter and 1. 6 ratio. High EnergyT Rockers help eliminate the noise and slop associated with older worn and high mileage stock rocker arms. With a long slot for higher than stock lift camshafts, these rocker arms are an excellent replacement choice for engine rebuilds