# 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 ## Details - **Price:** 78.58 CAD - **Vendor:** COMP Cams - **Type:** Valve Locks - **Tags:** ClearanceItem:N, Core:N, CorePrice:0, Engine Components>Valve Locks, EPA:N/A, fits_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, fits_1965-1967`American Motors`Ambassador`880~1965-1967`American Motors`Ambassador`990~1968-1970`American Motors`Ambassador`Base~1966-1969`American Motors`Ambassador`DPL~1971`American Motors`Ambassador`DPL~1964-1968`American Motors`American`220, fits_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, fits_1967-1968`American Motors`Rebel`550~1967-1968`American Motors`Rebel`770~1969-1970`American Motors`Rebel`Base~1967`American Motors`Rebel`SST~1969-1970`American Motors`Rebel`SST~1979-1982`American Motors`Spirit`Base, fits_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, fits_1970-1978`American Motors`Gremlin`Base~1976-1978`American Motors`Gremlin`Custom~1977`American Motors`Hornet`AMX~1970-1971`American Motors`Hornet`Base~1973-1977`American Motors`Hornet`Base~1971-1977`American Motors`Hornet`Sportabout, fits_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, fits_1976-1986`Jeep`CJ7`Base~1977-1979`Jeep`CJ7`Golden Eagle~1980`Jeep`CJ7`Golden Hawk~1980-1983`Jeep`CJ7`Laredo~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, fits_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, fits_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, fits_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, fits_1982-1983`Jeep`Scrambler`SL~1982-1984`Jeep`Scrambler`SR~1972-1973`Jeep`Wagoneer`Base~1980-1982`Jeep`Wagoneer`Base~1982-1983`Jeep`Wagoneer`Brougham~1973`Jeep`Wagoneer`Custom~1980-1983`Jeep`Wagoneer`Limited~1987-1988`Jeep`Wrangler`Base, fits_1984-1985`Jeep`Grand Wagoneer`Limited~1972-1973`Jeep`J-2500`Base~1972-1973`Jeep`J-2600`Base~1974-1987`Jeep`J10`Base~1974`Jeep`J20`Base~1976`Jeep`J20`Base~1981-1985`Jeep`Scrambler`Base~1985`Jeep`Scrambler`Laredo~1985`Jeep`Scrambler`Renegade, fits_1988`Jeep`Wrangler`Islander~1987-1988`Jeep`Wrangler`Laredo~1988`Jeep`Wrangler`S~1988`Jeep`Wrangler`Sahara~1987-1988`Jeep`Wrangler`Sport, LTL:N, MPN:603-12, Non-CARB:N, Prop65:Y, SpecialOrder:Y, TURN14_ID:4393014 ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 78.58 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - Logo Image - Logo Image --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/comp-cams-valve-locks-3-8in-single-groove) > Updated: 2026-07-16