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SpringRetainerKeeper
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.
648-100 - Locks, EB MACH'D Steel 11/32" 7deg
Engine Valve Spring Retainer Keeper Kit
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included items. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
COMP Cams Locks Eb MachD Steel 11/32in | ||||
---|---|---|---|---|
Year Range | Make | Model | Submodels | Region |
1994-1996 | Buick | Commercial Chassis | Base | US |
1994-1996 | Buick | Roadmaster | Base, Estate Wagon, Limited, Collector's Edition, Limited Collector's Edition, Estate Wagon Collector's Edition | US |
1994-1996 | Cadillac | Commercial Chassis | Base, Brougham | US |
1994-1996 | Cadillac | Fleetwood | Base, Brougham | US |
1993-1997 | Chevrolet | Camaro | Indianapolis 500 Pace Car, Z28 | US |
1994-1996 | Chevrolet | Caprice | Classic, Classic LS | US |
1992-1996 | Chevrolet | Corvette | Base, 40th Anniversary Edition, Indianapolis 500 Pace Car, Collector's Edition, Grand Sport | US |
1994-1996 | Chevrolet | Impala | SS | US |
1993-1997 | Pontiac | Firebird | Formula, Trans Am, Trans Am GT | US |
Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.
SpringRetainerKeeper
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.
648-100 - Locks, EB MACH'D Steel 11/32" 7deg
Engine Valve Spring Retainer Keeper Kit
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included items. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
COMP Cams Locks Eb MachD Steel 11/32in | ||||
---|---|---|---|---|
Year Range | Make | Model | Submodels | Region |
1994-1996 | Buick | Commercial Chassis | Base | US |
1994-1996 | Buick | Roadmaster | Base, Estate Wagon, Limited, Collector's Edition, Limited Collector's Edition, Estate Wagon Collector's Edition | US |
1994-1996 | Cadillac | Commercial Chassis | Base, Brougham | US |
1994-1996 | Cadillac | Fleetwood | Base, Brougham | US |
1993-1997 | Chevrolet | Camaro | Indianapolis 500 Pace Car, Z28 | US |
1994-1996 | Chevrolet | Caprice | Classic, Classic LS | US |
1992-1996 | Chevrolet | Corvette | Base, 40th Anniversary Edition, Indianapolis 500 Pace Car, Collector's Edition, Grand Sport | US |
1994-1996 | Chevrolet | Impala | SS | US |
1993-1997 | Pontiac | Firebird | Formula, Trans Am, Trans Am GT | US |
Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.