COMP Cams Locks Eb MachD Steel 11/32in
COMP Cams Locks Eb MachD Steel 11/32in
COMP Cams Locks Eb MachD Steel 11/32in
COMP Cams Locks Eb MachD Steel 11/32in
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COMP Cams Locks Eb MachD Steel 11/32in

2 sold in last 8 hours
COMP Cams
CCA648-100
Out of stock
Valve Locks
$169.95
Most people believe that the tang inside a valve lock holds the retainer and valve spring...
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$169.95

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COMP Cams Locks Eb MachD Steel 11/32in
Most people believe that the tang inside a valve lock holds the retainer and valve spring in place while the engine is running, but this isn't the case. The cross-section of material in the tang is not strong enough to withstand open spring loads of 1000 lbs. or more. The sole purpose of the tang 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 a 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 the standard 5/16", 11/32" and 3/8", it is important to make sure the valve locks match the 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 fit together without a gap, they are too large. If the locks fit tight to the stem and leave a gap between the middle of the lock and the O.D. of the stem, the locks are too small. Our line of stock replacement 7 valve locks for stock engine rebuilds are recommended only for street applications with lighter valve spring loads and are stamped and hardened for superior wear resistance. Also available are machined 7 locks and titanium Super 7 Locks for some applications. They offer the same valve spring location accuracy as our Super Locks without the need to change to 10 degree retainers.
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This Part Fits:

Year Make Model Submodel
1994-1996 Buick Commercial Chassis Base
1994-1995 Buick Roadmaster Base
1996 Buick Roadmaster Collector's Edition
1994-1995 Buick Roadmaster Estate Wagon
1996 Buick Roadmaster Estate Wagon Collector's Edition
1994-1995 Buick Roadmaster Limited
1996 Buick Roadmaster Limited Collector's Edition
1994-1996 Cadillac Commercial Chassis Base
1994-1996 Cadillac Commercial Chassis Brougham
1994-1996 Cadillac Fleetwood Base
1994-1996 Cadillac Fleetwood Brougham
1993 Chevrolet Camaro Indianapolis 500 Pace Car
1993-1997 Chevrolet Camaro Z28
1994-1996 Chevrolet Caprice Classic
1994 Chevrolet Caprice Classic LS
1993 Chevrolet Corvette 40th Anniversary Edition
1992-1996 Chevrolet Corvette Base
1996 Chevrolet Corvette Collector's Edition
1996 Chevrolet Corvette Grand Sport
1995 Chevrolet Corvette Indianapolis 500 Pace Car
1994-1996 Chevrolet Impala SS
1993-1997 Pontiac Firebird Formula
1993-1997 Pontiac Firebird Trans Am
1994 Pontiac Firebird Trans Am GT
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