Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. COMP Cams steel retainers are precision machined from 4140 chromemoly steel and finished in black oxide. These precision retainers are specifically designed for positive location when combined with COMP Cams high-quality valve springs. For superior strength and ultimate stability, both 7° and 10° retainers and valve locks are available. Refer to the spring application chart on pages 293-303 for correct retainer part numbers for each COMP Cams valve spring. PartNumber : cca714-1 Description : Steel Valve Spring Retainers; Single Piece Title : 714-1 Steel Retainers, for 26925 only Non-LS California Proposition 65 : WARNING: This product contains a chemical known to the State of California to cause cancer, birth defects or other reproductive harm. Compatible Lock : 648-16 Diameter 1 : 1.2 Diameter 2 : 0.945 Diameter 3 : 0.675 Lock Angle : 7 Retainer Material : 4140 Chromemoly Steel Valve Spring Diameter : 1.32 Valve Stem Size : 11/32 Angle : 7° Diameter 2 : .945" Diameter 1 : 1.200" Diameter 3 : .675" Diameter 4 : N/A Spring Diameter : 1.320" Stem Size : 11/32" Engine Components::Valve Springs, Retainers