Perfect Combo. When purchasing a hot cam and upgrading to Comp Cams Beehive Style Springs in your 2005 to 2010 Mustang GT or Bullitt, upgrade to Comp Cams steel spring retainers to complete your three valve's street and strip ready build. These retainers are designed to work perfectly with Comp Cam's patented Beehive valve springs for factory-like reliability with racecar-like performance.
Superior Quality. Comp Cams machines these spring retainers from super strong 4130 chromoly alloy steel and coats them with a black oxide finish for durability.
Application. These Comp Cams Valve Spring Steel Retainers are designed to work with the Comp Cams Beehive Valve Springs Kit for the 2005-2010 4.6L three valve V8 Mustang.