COMP Cams Valve Locks 3/8in Single Groove

lock angle and 3/8" valve stem size is a perfect replacement lock for stock engine rebuilds. It is recommended only for street Applications with lighter valve spring loads. 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 OD of the stem, the locks are too small. Most people believe that the tang inside a valve lock Oldsmobile 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.

This Part Fits:

Year	Make	Model	Submodel
1965-1967	American Motors	Ambassador	880
1965-1967	American Motors	Ambassador	990
1968-1970	American Motors	Ambassador	Base
1966-1969,1971	American Motors	Ambassador	DPL
1964-1968	American Motors	American	220
1965-1968	American Motors	American	440
1964	American Motors	American	440H
1967-1968	American Motors	American	Rogue
1978-1980	American Motors	AMX	Base
1964-1966	American Motors	Classic	550
1965	American Motors	Classic	660
1964-1966	American Motors	Classic	770
1978-1983	American Motors	Concord	Base
1979-1983	American Motors	Concord	DL
1979-1983	American Motors	Concord	Limited
1981-1986	American Motors	Eagle	Base
1980	American Motors	Eagle	DL
1981-1982	American Motors	Eagle	DL Kammback
1981-1983	American Motors	Eagle	DL SX4
1981-1982	American Motors	Eagle	Kammback
1980-1986	American Motors	Eagle	Limited
1980	American Motors	Eagle	Sport
1981-1983	American Motors	Eagle	SX4
1970-1978	American Motors	Gremlin	Base
1976-1978	American Motors	Gremlin	Custom
1977	American Motors	Hornet	AMX
1970-1971,1973-1977	American Motors	Hornet	Base
1971-1977	American Motors	Hornet	Sportabout
1970-1972	American Motors	Hornet	SST
1968-1974	American Motors	Javelin	Base
1968-1972	American Motors	Javelin	SST
1965-1967	American Motors	Marlin	Base
1971-1978	American Motors	Matador	Base
1974	American Motors	Matador	Brougham
1975-1978	American Motors	Pacer	Base
1979-1980	American Motors	Pacer	DL
1979-1980	American Motors	Pacer	Limited
1969	American Motors	Rambler	440
1969	American Motors	Rambler	Base
1969	American Motors	Rambler	Rogue
1967-1968	American Motors	Rebel	550
1967-1968	American Motors	Rebel	770
1969-1970	American Motors	Rebel	Base
1967,1969-1970	American Motors	Rebel	SST
1979-1982	American Motors	Spirit	Base
1980-1983	American Motors	Spirit	DL
1983	American Motors	Spirit	GT
1980	American Motors	Spirit	Limited
1974-1983	Jeep	Cherokee	Base
1981-1982	Jeep	Cherokee	Chief
1983	Jeep	Cherokee	Pioneer
1974-1977	Jeep	Cherokee	S
1978-1980	Jeep	Cherokee	Wide Track
1983	Jeep	Cherokee	Wide Track Chief
1972-1983	Jeep	CJ5	Base
1977-1980	Jeep	CJ5	Golden Eagle
1980-1983	Jeep	CJ5	Laredo
1982-1983	Jeep	CJ5	Limited
1975-1983	Jeep	CJ5	Renegade
1972-1975	Jeep	CJ6	Base
1976-1986	Jeep	CJ7	Base
1977-1979	Jeep	CJ7	Golden Eagle
1980	Jeep	CJ7	Golden Hawk
1980-1983,1985-1986	Jeep	CJ7	Laredo
1982-1983	Jeep	CJ7	Limited
1976-1986	Jeep	CJ7	Renegade
1972-1974	Jeep	DJ5	Base
1984-1986	Jeep	Grand Wagoneer	Base
1984-1985	Jeep	Grand Wagoneer	Limited
1972-1973	Jeep	J-2500	Base
1972-1973	Jeep	J-2600	Base
1974-1987	Jeep	J10	Base
1974,1976	Jeep	J20	Base
1981-1985	Jeep	Scrambler	Base
1985	Jeep	Scrambler	Laredo
1985	Jeep	Scrambler	Renegade
1982-1983	Jeep	Scrambler	SL
1982-1984	Jeep	Scrambler	SR
1972-1973,1980-1982	Jeep	Wagoneer	Base
1982-1983	Jeep	Wagoneer	Brougham
1973	Jeep	Wagoneer	Custom
1980-1983	Jeep	Wagoneer	Limited
1987-1988	Jeep	Wrangler	Base
1988	Jeep	Wrangler	Islander
1987-1988	Jeep	Wrangler	Laredo
1988	Jeep	Wrangler	S
1988	Jeep	Wrangler	Sahara
1987-1988	Jeep	Wrangler	Sport