FREE SHIPPING & HANDLING!*                           Order by 11 PM EST for Same Day Shipping!

Comp Cams Valve Stem Locks


COMP Cams
Comp Cams Valve Stem Locks

Most people believe that the tang inside a valve lock is what holds the valve spring retainer and spring in place while the engine is running, however tangs are not strong enough to withstand today's open spring loads of 1000+ pounds. The tang's sole purpose is to temporarily locate the lock, retainer, and spring relative to the valve until the taper of the retainer can nest around the outside surface of the lock. This creates the "collet effect" that binds the two together; the more spring force exerted on the retainer as the valve opens, the more force applied by the collet effect to keep the retainer and lock in place.

With the emergence of valve sizes other than 5/16", 11/32", and 3/8", it is important to make sure valve locks match valve size. There should always be a small gap between the two halves of the lock when they are properly positioned on the valve stem. If the two halves are in contact without a gap, the valve locks are for a bigger stem. If the locks fit tight to the stem and leave a gap between the middle of the lock and the stem's outer diameter, the locks are too small for the valves. All locks should be checked before final installation to ensure they're the correct size.

Comp Cams 7° Street Valve Locks are made from stamped, hardened steel. Designed for stock engine rebuilds and only recommended for street use with lighter spring loads. The 7° Race Valve Locks are available in Machined Steel or Titanium. They offer the same valve spring location accuracy as the 10° Super Locks, without the need to change to 10° retainers. Comp Cams 10° Super Locks handle higher spring pressures by distributing load over a larger area. This reduces the chance of a "pull-through" failure. Recommended for all race applications.



86 Products Page: 1 2 3 ... |  Next Results per Page:
Street Valve Locks
  • 7° lock angle

  • 249-601-12
    Street Valve Locks
  • Valve Stem: 11/32"
  • 12/pkg
    More info on COMP Cams 601-12

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $8.99
    Order Today Ships 04/29/14

    249-601-16
    Street Valve Locks
  • Valve Stem: 11/32"
  • 16/pkg
    More info on COMP Cams 601-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $8.99
    Ships

    249-605-16
    Ford 351C 4-Groove Street Valve Locks<
  • 7°li>Valve Stem: 11/32"
  • 16/pkg
    More info on COMP Cams 605-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $11.99
    Order Today Ships 04/29/14

    249-603-12
    Street Valve Locks
  • Valve Stem: 3/8"
  • 12/pkg
    More info on COMP Cams 603-12

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $8.99
    Ships

    249-603-16
    Street Valve Locks
  • Valve Stem: 3/8"
  • 16/pkg
    More info on COMP Cams 603-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $8.99
    Ships

    249-606-16
    Chrysler 2-Groove & 4-Groove Street Valve Locks
  • Valve Stem: 3/8"
  • 16/pkg
    More info on COMP Cams 606-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $11.99
    Order Today Ships 04/29/14

    249-604-16
    Chrysler 4-Groove Street Valve Locks
  • Valve Stem: 3/8"
  • 16/pkg
    More info on COMP Cams 604-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $13.99
    Ships
    Race Valve Locks
  • 7° lock angle

  • 249-648-1
    Race Valve Lock
  • Valve Stem: 11/32"
  • 1/pkg
    More info on COMP Cams 648-1

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $2.69
    Ships

    249-648-12
    Race Valve Locks
  • Valve Stem: 11/32"
  • 12/pkg
    More info on COMP Cams 648-12

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $23.99
    Order Today Ships 04/29/14

    249-648-16
    Race Valve Locks
  • Valve Stem: 11/32"
  • 16/pkg
    More info on COMP Cams 648-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $25.99
    Ships

    249-623-16
    GM Gen III/LS1/LS2/LS6 Race Valve Locks
  • Valve Stem: 8mm
  • 16/pkg
    More info on COMP Cams 623-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $34.99
    Ships
    Super Locks
  • 10° lock angle

  • 249-618-16
    Valve Locks with Lash Cap Recess
  • 10°
  • Valve Stem: .310"
  • 16/pkg
    More info on COMP Cams 618-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $29.99
    Order Today Ships 04/29/14

    249-617-16
    Valve Locks without Lash Cap Recess
  • 10°
  • Valve Stem: .310"
  • 16/pkg
    More info on COMP Cams 617-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $29.99
    Order Today Ships 04/29/14

    249-610-16
    Valve Locks with Lash Cap Recess
  • 10°
  • Valve Stem: 5/16"
  • 16/pkg
    More info on COMP Cams 610-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $26.99
    Ships

    249-632-16
    Valve Locks - LS1/LS6
  • 10°
  • Valve Stem: 8mm
  • 16/pkg
    More info on COMP Cams 632-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $39.99
    Ships

    249-611-1
    Valve Lock with Lash Cap Recess
  • 10°
  • Valve Stem: 11/32"
  • 1/pkg
    More info on COMP Cams 611-1

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $2.69
    Ships

    249-611-16
    Valve Locks with Lash Cap Recess
  • 10°
  • Valve Stem: 11/32"
  • 16/pkg
    More info on COMP Cams 611-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $24.99
    Ships

    249-630-16
    Valve Locks with Lash Cap Recess
  • 10°
  • Valve Stem: 11/32"
  • Install Height: -.050"
  • 16/pkg
    More info on COMP Cams 630-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $33.99
    Ships

    249-613-16
    Valve Locks without Lash Cap Recess
  • 10°
  • Valve Stem: 11/32"
  • 16/pkg
    More info on COMP Cams 613-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $25.99
    Ships

    249-614-16
    Valve Locks without Lash Cap Recess
  • 10°
  • Valve Stem: 11/32"
  • Install Height: +.050"
  • 16/pkg
    More info on COMP Cams 614-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $25.99
    Ships

    249-624-16
    Ford 4-Groove Valve Locks
  • 10°
  • Valve Stem: 11/32"
  • 16/pkg
    More info on COMP Cams 624-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $43.99
    Ships

    249-612-1
    Valve Lock with Lash Cap Recess
  • 10°
  • Valve Stem: 3/8"
  • 1/pkg
    More info on COMP Cams 612-1

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $3.69
    Ships

    249-612-16
    Valve Locks with Lash Cap Recess
  • 10°
  • Valve Stem: 3/8"
  • 16/pkg
    More info on COMP Cams 612-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $24.99
    Ships

    249-616-16
    Valve Locks without Lash Cap Recess
  • 10°
  • Valve Stem: 3/8"
  • Install Height: +.050"
  • 16/pkg
    More info on COMP Cams 616-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $25.99
    Ships

    249-627-16
    Chrysler 2-Groove & 4-Groove Valve Locks
  • 10°
  • Valve Stem: 3/8"
  • 16/pkg
    More info on COMP Cams 627-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $44.99
    Ships

    249-626-16
    Chrysler 4-Groove Valve Locks
  • 10°
  • Valve Stem: 3/8"
  • 16/pkg
    More info on COMP Cams 626-16

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $44.99
    Ships

    249-603-1
    Comp Cams 3/8 SINGLE GROOVE LOCK
    More info on COMP Cams 603-1

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
    $2.69
    Order Today Ships 04/29/14
      249-62-999-3
    C62 CHEV 6 292 REGRIND
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
    $201.99
    Order Today Ships 04/29/14

    249-623-1
    Comp Cams HI PERF VALVE LOCK FOR GM
    More info on COMP Cams 623-1

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
    $5.99
    Order Today Ships 04/29/14

    249-623-100
    EB HI PERF VALVE LOCK FOR GM LS1
    More info on COMP Cams 623-100

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
    $193.99
    Order Today Ships 04/29/14

    86 Products Page: 1 2 3 ... |  Next Results per Page: