Pay in 4 interest-free payments of $22.33 Learn more
Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
Extended Length - Clears thick spacers
high-efficiency megaphone structure
Sierra Grande 1968 - 1974 GMC C15/C1500 Pickup Base 1968 - 1974 GMC C15/C1500 Suburban Base 1979 - 1980 GMC C1500 Base
Bring no additional hardware — everything bolts to what's already there
Factory core design keeps cooling efficient without custom fabrication
Comp Cams 11/32 1.250 Steel Retainer Riot Garage Extended Length - Clears thick7 Steel Retainers: 1. 250" Spring Diameter Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. 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