Comp Cams Hi Perf Valve Locks For Gm Ls1

SKU: 01XE9 | MPN:  623-16
In stock
Sale price$50.74 USD

16 Pair Machined Steel Race Locks: 1 Groove, 7° Angle, 8mm Stem Size

These single groove Machined Steel Street Locks with 7° lock angle and 8mm valve stem size are perfect locks for GM Gen III/LS1/LS2/LS6 applications. It is critically important to make sure 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.

Most people believe that the tang inside a valve lock holds the retainer and valve spring in place while the engine is running. This is not 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.



Vehicle Fitments:

Year Make Model Submodel
2004 - 2007 Cadillac CTS V, Base
1998 Chevrolet Camaro Lujo
1998 - 2002 Chevrolet Camaro Z28 SS, Z28, Base
2003 Chevrolet Corvette 50th Anniversary Edition Pace Car, 50th Anniversary Edition
1997 - 2007 Chevrolet Corvette Base
1998 Chevrolet Corvette Indianapolis 500 Pace Car
2001 - 2007 Chevrolet Corvette Z06
2006 - 2007 Chevrolet Impala LTZ, SS, Police, LS, LT
2006 - 2007 Chevrolet Monte Carlo LS, LT, SS
2006 Chevrolet Monte Carlo LTZ
2005 - 2006 Chevrolet SSR Base
2006 Chevrolet Trailblazer SS, Base, LS, B, A, LT
1998 - 2002 Pontiac Firebird Formula, Trans Am, Base
2005 Pontiac Grand Prix GTP
2005 - 2007 Pontiac Grand Prix GXP, Base, GT
2004 - 2006 Pontiac GTO Base

Related Products