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COMP Cams 648-16

Machined Steel Race Valve Locks Angle: 10°

COMP Cams 648-16
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249-648-16

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COMP Cams 648-16 Machined Steel Race Valve Locks Angle: 10° $31.99
Machined Steel Race Valve Locks
  • Angle: 10°
  • Valve Stem: 11/32"
  • Single Groove
  • 16/pkg

  • COMP Cams 648-16 Details

    Race Valve Locks

  • 7° lock angle

  • Wider Angle
  • Precision Machined
  • Super Tough
  • Inside Tang
  • 1 Year Limited Warranty

  • Specifications:

    Lock Angle
    7 Deg.
    Lock Groove Quantity
    1-groove
    Lock Material
    Hardened steel
    Lock Style
    7 degree
    Manufacturing Process
    Machined
    Quantity
    Sold as a set of 32
    Recessed for Lash Cap
    No
    Valve Stem Diameter (in.)
    0.342
    Manufacturer's Part Number:
    648-16

    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.

    Does COMP Cams 648-16 fit your vehicle?

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    1994-1996 BUICK COMMERCIAL CHASSIS

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1994 CHEVROLET CAMARO

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996 CHEVROLET CORVETTE

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: 5
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1993-1997 PONTIAC FIREBIRD

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: FORMULA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996 CHEVROLET CORVETTE

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: COLLECTORS EDITION

    1994-1997 PONTIAC FIREBIRD

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1996 CADILLAC COMMERCIAL CHASSIS

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1993 CHEVROLET CAMARO

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: Z28

    1994-1996 CHEVROLET IMPALA

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: SS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1993 CHEVROLET CAMARO

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: INDIANAPOLIS 500 PACE CAR
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1995 BUICK ROADMASTER

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: LIMITED

    1994-1996 CHEVROLET CAPRICE

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1993 PONTIAC FIREBIRD

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 PONTIAC FIREBIRD

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: TRANS AM GT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1993 CHEVROLET CORVETTE

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: 40TH ANNIVERSARY EDITION

    1997 CHEVROLET CAMARO

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1996 CADILLAC FLEETWOOD

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1994-1995 BUICK ROADMASTER

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ESTATE WAGON

    1995 CHEVROLET CORVETTE

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: INDIANAPOLIS 500 PACE CAR

    1994 CHEVROLET CAPRICE

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • SubModel: CLASSIC LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995-1996 CHEVROLET CAMARO

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: Z28
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996 BUICK ROADMASTER

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: LIMITED COLLECTORS EDITION

    1994-1995 BUICK ROADMASTER

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: BASE

    1996 BUICK ROADMASTER

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ESTATE WAGON COLLECTORS EDITION

    1996 BUICK ROADMASTER

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: COLLECTORS EDITION

    1992-1996 CHEVROLET CORVETTE

    • Fitment_Note: 50-State Legal
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996 CHEVROLET CORVETTE

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: GRAND SPORT
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