Comp Cams FORD 3.8L-4.2L STEEL RETAINER 4G4RBF 4:10 or lower with good

4:10 or lower with good intake & exhaust

Large doors and windows frame panoramic views

Photon RGB Rock Light with Bluetooth APP & Remote Control Kit - CLICK HERE

Duration: 260 Intake / 260 Exhaust

Upgrade your Wrangler JL Unlimited with Artec Industries' sliders

Comp Cams FORD 3.8L-4.2L STEEL RETAINER 4G4RBF 4:10 or lower with good7 Steel Retainers: Stock Spring Dia. Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. New COMP Cams Steel Retainers are the perfect solution to this problem. COMP engineers used 3D CAD with FEA to design retainers with a modern and advanced contoured top profiling for lower stress, increased lift and a reduction in mass. The retainers are CNC machined to exact tolerances using CAD CAM