COMP Cams Valve Locks 3/8in Four Groove - cca604-12

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 7º Locks for some applications. They offer the same valve spring location accuracy as our Super Locks™ without the need to change to 10° retainers. PartNumber : cca604-12 Description : Hardened Steel Street Locks; 4 Groove; 12 Pieces Title : 604-12 Valve Locks, 3/8" Four Groove Lock Angle : 7° Valve Stem Size : 3/8" California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Lock Angle : 7 Lock Series : Street Locks Material : Steel Number of Grooves : 4 Valve Stem Diameter : 3/8 1980 Chrysler Cordoba 300 L6.3687cc Engine Components::Valve Locks 1980-1983 Chrysler Cordoba Base L6.3687cc Engine Components::Valve Locks 1980 Chrysler Cordoba Crown L6.3687cc Engine Components::Valve Locks 1980-1982 Chrysler Cordoba LS L6.3687cc Engine Components::Valve Locks 1983 Chrysler Fifth Avenue Base L6.3687cc Engine Components::Valve Locks 1978-1981 Chrysler LeBaron Base L6.3687cc Engine Components::Valve Locks 1978-1981 Chrysler LeBaron Medallion L6.3687cc Engine Components::Valve Locks 1978 Chrysler LeBaron S L6.3687cc Engine Components::Valve Locks 1979-1981 Chrysler LeBaron Salon L6.3687cc Engine Components::Valve Locks 1980-1981 Chrysler LeBaron Special L6.3687cc Engine Components::Valve Locks 1982 Chrysler New Yorker Base L6.3687cc Engine Components::Valve Locks 1979-1981 Chrysler Newport Base L6.3687cc Engine Components::Valve Locks 1978-1981 Chrysler Town & Country Base L6.3687cc Engine Components::Valve Locks 1964-1970 Dodge A100 Truck Base L6.3687cc Engine Components::Valve Locks 1968-1970 Dodge A100 Truck Sportsman L6.3687cc Engine Components::Valve Locks 1967-1970 Dodge A108 Van Base L6.-cc Engine Components::Valve Locks 1976-1980 Dodge Aspen Base L6.3687cc Engine Components::Valve Locks 1976-1977 Dodge Aspen Custom L6.3687cc Engine Components::Valve Locks 1976-1977 Dodge Aspen Special Edition L6.3687cc Engine Components::Valve Locks 1975-1980 Dodge B100 Base L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge B100 Van Base L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge B100 Van Sportsman L6.3687cc Engine Components::Valve Locks 1981-1987 Dodge B150 Base L6.3687cc Engine Components::Valve Locks 1979 Dodge B200 Base L6.-cc Engine Components::Valve Locks 1975-1978 Dodge B200 Base L6.3687cc Engine Components::Valve Locks 1980 Dodge B200 Base L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge B200 Van Base L6.3687cc Engine Components::Valve Locks 1972-1974 Dodge B200 Van Maxi L6.3687cc Engine Components::Valve Locks 1972-1974 Dodge B200 Van Maxi Wagon L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge B200 Van Sportsman L6.3687cc Engine Components::Valve Locks 1981-1987 Dodge B250 Base L6.3687cc Engine Components::Valve Locks 1980 Dodge B300 Base L6.-cc Engine Components::Valve Locks 1975-1979 Dodge B300 Base L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge B300 Van Base L6.3687cc Engine Components::Valve Locks 1972-1974 Dodge B300 Van Maxi L6.3687cc Engine Components::Valve Locks 1972-1974 Dodge B300 Van Maxi Wagon L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge B300 Van Sportsman L6.3687cc Engine Components::Valve Locks 1974-1975 Dodge CB300 Base L6.3687cc Engine Components::Valve Locks 1977-1979 Dodge CB300 Base L6.3687cc Engine Components::Valve Locks 1970-1972 Dodge Challenger Base L6.3687cc Engine Components::Valve Locks 1969-1970 Dodge Charger 500 L6.3687cc Engine Components::Valve Locks 1968-1974 Dodge Charger Base L6.3687cc Engine Components::Valve Locks 1976 Dodge Charger Base L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge Charger Special Edition L6.3687cc Engine Components::Valve Locks 1976 Dodge Charger Sport L6.3687cc Engine Components::Valve Locks 1965-1970 Dodge Coronet 440 L6.3687cc Engine Components::Valve Locks 1966-1970 Dodge Coronet 500 L6.3687cc Engine Components::Valve Locks 1967 Dodge Coronet Base L6.3687cc Engine Components::Valve Locks 1970-1976 Dodge Coronet Base L6.3687cc Engine Components::Valve Locks 1971 Dodge Coronet Brougham L6.3687cc Engine Components::Valve Locks 1976 Dodge Coronet Brougham L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge Coronet Crestwood L6.3687cc Engine Components::Valve Locks 1971-1975 Dodge Coronet Custom L6.3687cc Engine Components::Valve Locks 1966 Dodge Coronet Deluxe L6.3687cc Engine Components::Valve Locks 1968-1970 Dodge Coronet Deluxe L6.3687cc Engine Components::Valve Locks 1975-1979 Dodge D100 Custom L6.3687cc Engine Components::Valve Locks 1986-1987 Dodge D100 Custom L6.3687cc Engine Components::Valve Locks 1976-1978 Dodge D100 Warlock L6.3687cc Engine Components::Valve Locks 1979 Dodge D100 Warlock II L6.3687cc Engine Components::Valve Locks 1968-1974 Dodge D100 Pickup Base L6.3687cc Engine Components::Valve Locks 1960-1967 Dodge D100 Series Base L6.3687cc Engine Components::Valve Locks 1977-1987 Dodge D150 Base L6.3687cc Engine Components::Valve Locks 1982-1983 Dodge D150 Miser L6.3687cc Engine Components::Valve Locks 1977-1980 Dodge D200 Base L6.3687cc Engine Components::Valve Locks 1975-1976 Dodge D200 Custom L6.3687cc Engine Components::Valve Locks 1968-1974 Dodge D200 Pickup Base L6.3687cc Engine Components::Valve Locks 1960-1967 Dodge D200 Series Base L6.3687cc Engine Components::Valve Locks 1981-1987 Dodge D250 Base L6.3687cc Engine Components::Valve Locks 1977-1978 Dodge D300 Base L6.3687cc Engine Components::Valve Locks 1975-1976 Dodge D300 Custom L6.3687cc Engine Components::Valve Locks 1968-1974 Dodge D300 Pickup Base L6.3687cc Engine Components::Valve Locks 1960-1967 Dodge D300 Series Base L6.3687cc Engine Components::Valve Locks 1963-1968 Dodge Dart 270 L6.3687cc Engine Components::Valve Locks 1962 Dodge Dart 330 L6.3687cc Engine Components::Valve Locks 1962 Dodge Dart 440 L6.3687cc Engine Components::Valve Locks 1960-1976 Dodge Dart Base L6.3687cc Engine Components::Valve Locks 1969-1975 Dodge Dart Custom L6.3687cc Engine Components::Valve Locks 1971-1972 Dodge Dart Demon L6.3687cc Engine Components::Valve Locks 1963 Dodge Dart GT L6.3687cc Engine Components::Valve Locks 1965-1969 Dodge Dart GT L6.3687cc Engine Components::Valve Locks 1960-1961 Dodge Dart Phoenix L6.3687cc Engine Components::Valve Locks 1960-1961 Dodge Dart Pioneer L6.3687cc Engine Components::Valve Locks 1971-1974 Dodge Dart Special L6.3687cc Engine Components::Valve Locks 1974-1975 Dodge Dart Special Edition L6.3687cc Engine Components::Valve Locks 1973-1976 Dodge Dart Sport L6.3687cc Engine Components::Valve Locks 1969-1976 Dodge Dart Swinger L6.3687cc Engine Components::Valve Locks 1975-1976 Dodge Dart Swinger Special L6.3687cc Engine Components::Valve Locks 1978-1981 Dodge Diplomat Base L6.3687cc Engine Components::Valve Locks 1978-1983 Dodge Diplomat Medallion L6.3687cc Engine Components::Valve Locks 1978 Dodge Diplomat S L6.3687cc Engine Components::Valve Locks 1979-1983 Dodge Diplomat Salon L6.3687cc Engine Components::Valve Locks 1981 Dodge Diplomat Sport L6.3687cc Engine Components::Valve Locks 1961-1962 Dodge Lancer 770 L6.3687cc Engine Components::Valve Locks 1961-1962 Dodge Lancer Base L6.3687cc Engine Components::Valve Locks 1980-1983 Dodge Mirada Special Coupe L6.3687cc Engine Components::Valve Locks 1977-1978 Dodge Monaco Base L6.3687cc Engine Components::Valve Locks 1977-1978 Dodge Monaco Brougham L6.3687cc Engine Components::Valve Locks 1963-1964 Dodge Polara Base L6.3687cc Engine Components::Valve Locks 1970-1971 Dodge Polara Base L6.3687cc Engine Components::Valve Locks 1971 Dodge Polara Brougham L6.3687cc Engine Components::Valve Locks 1970-1971 Dodge Polara Custom L6.3687cc Engine Components::Valve Locks 1970 Dodge Polara Special L6.3687cc Engine Components::Valve Locks 1974-1980 Dodge Ramcharger Base L6.3687cc Engine Components::Valve Locks 1975-1980 Dodge Ramcharger SE L6.3687cc Engine Components::Valve Locks 1979-1981 Dodge St. Regis Base L6.3687cc Engine Components::Valve Locks 1975-1977 Dodge W100 Custom L6.3687cc Engine Components::Valve Locks 1986-1987 Dodge W100 Custom L6.3687cc Engine Components::Valve Locks 1968-1974 Dodge W100 Pickup Base L6.3687cc Engine Components::Valve Locks 1960-1967 Dodge W100 Series Base L6.3687cc Engine Components::Valve Locks 1978-1987 Dodge W150 Base L6.3687cc Engine Components::Valve Locks 1975-1980 Dodge W200 Base L6.3687cc Engine Components::Valve Locks 1968 Dodge W200 Pickup Base L6.3687cc Engine Components::Valve Locks 1970-1974 Dodge W200 Pickup Base L6.3687cc Engine Components::Valve Locks 1960-1967 Dodge W200 Series Base L6.3687cc Engine Components::Valve Locks 1977-1978 Dodge W300 Base L6.3687cc Engine Components::Valve Locks 1975-1976 Dodge W300 Custom L6.3687cc Engine Components::Valve Locks 1968-1974 Dodge W300 Pickup Base L6.3687cc Engine Components::Valve Locks 1963-1967 Dodge W300 Series Base L6.3687cc Engine Components::Valve Locks 1964-1972 Plymouth Barracuda Base L6.3687cc Engine Components::Valve Locks 1970-1971 Plymouth Barracuda Gran Coupe L6.3687cc Engine Components::Valve Locks 1960-1970 Plymouth Belvedere Base L6.3687cc Engine Components::Valve Locks 1968-1970 Plymouth Belvedere Satellite L6.3687cc Engine Components::Valve Locks 1965-1967 Plymouth Belvedere II Base L6.3687cc Engine Components::Valve Locks 1960-1961 Plymouth Custom Base L6.3687cc Engine Components::Valve Locks 1970-1975 Plymouth Duster Base L6.3687cc Engine Components::Valve Locks 1975 Plymouth Duster Custom L6.3687cc Engine Components::Valve Locks 1976 Plymouth Duster Sport L6.3687cc Engine Components::Valve Locks 1960-1963 Plymouth Fleet Special Base L6.3687cc Engine Components::Valve Locks 1960-1961 Plymouth Fury Base L6.3687cc Engine Components::Valve Locks 1966 Plymouth Fury Base L6.3687cc Engine Components::Valve Locks 1975-1978 Plymouth Fury Base L6.3687cc Engine Components::Valve Locks 1971 Plymouth Fury Custom L6.3687cc Engine Components::Valve Locks 1975 Plymouth Fury Custom L6.3687cc Engine Components::Valve Locks 1968 Plymouth Fury Custom Suburban L6.3687cc Engine Components::Valve Locks 1970 Plymouth Fury Custom Suburban L6.3687cc Engine Components::Valve Locks 1976-1978 Plymouth Fury Salon L6.3687cc Engine Components::Valve Locks 1969 Plymouth Fury Sport L6.3687cc Engine Components::Valve Locks 1976-1978 Plymouth Fury Sport L6.3687cc Engine Components::Valve Locks 1968 Plymouth Fury Suburban L6.3687cc Engine Components::Valve Locks 1970 Plymouth Fury Suburban L6.3687cc Engine Components::Valve Locks 1968-1973 Plymouth Fury I Base L6.3687cc Engine Components::Valve Locks 1965-1971 Plymouth Fury II Base L6.3687cc Engine Components::Valve Locks 1965-1971 Plymouth Fury III Base L6.3687cc Engine Components::Valve Locks 1980-1983 Plymouth Gran Fury Base L6.3687cc Engine Components::Valve Locks 1980 Plymouth Gran Fury Salon L6.3687cc Engine Components::Valve Locks 1975-1980 Plymouth PB100 Voyager L6.3687cc Engine Components::Valve Locks 1974 Plymouth PB100 Van Voyager L6.3687cc Engine Components::Valve Locks 1981-1983 Plymouth PB150 Voyager L6.3687cc Engine Components::Valve Locks 1975-1978 Plymouth PB200 Voyager L6.3687cc Engine Components::Valve Locks 1980 Plymouth PB200 Voyager L6.3687cc Engine Components::Valve Locks 1974 Plymouth PB200 Van Voyager L6.3687cc Engine Components::Valve Locks 1974 Plymouth PB200 Van Voyager EX Wagon L6.3687cc Engine Components::Valve Locks 1981-1983 Plymouth PB250 Voyager L6.3687cc Engine Components::Valve Locks 1966-1967 Plymouth Satellite Base L6.3687cc Engine Components::Valve Locks 1970-1974 Plymouth Satellite Base L6.3687cc Engine Components::Valve Locks 1971 Plymouth Satellite Brougham L6.3687cc Engine Components::Valve Locks 1971-1974 Plymouth Satellite Custom L6.3687cc Engine Components::Valve Locks 1971-1974 Plymouth Satellite Regent L6.3687cc Engine Components::Valve Locks 1971-1974 Plymouth Satellite Sebring L6.3687cc Engine Components::Valve Locks 1971-1974 Plymouth Satellite Sebring Plus L6.3687cc Engine Components::Valve Locks 1960-1964 Plymouth Savoy Base L6.3687cc Engine Components::Valve Locks 1960-1961 Plymouth Savoy Deluxe L6.3687cc Engine Components::Valve Locks 1971-1976 Plymouth Scamp Base L6.3687cc Engine Components::Valve Locks 1975 Plymouth Scamp Brougham L6.3687cc Engine Components::Valve Locks 1975-1976 Plymouth Scamp Special L6.3687cc Engine Components::Valve Locks 1960-1961 Plymouth Sport Wagon Base L6.3687cc Engine Components::Valve Locks 1960-1961 Plymouth Suburban Base L6.3687cc Engine Components::Valve Locks 1960-1961 Plymouth Suburban Custom L6.3687cc Engine Components::Valve Locks 1961 Plymouth Suburban Deluxe L6.3687cc Engine Components::Valve Locks 1975-1980 Plymouth Trailduster Base L6.3687cc Engine Components::Valve Locks 1968-1969 Plymouth Valiant 100 L6.3687cc Engine Components::Valve Locks 1961-1964 Plymouth Valiant 200 L6.3687cc Engine Components::Valve Locks 1966 Plymouth Valiant 200 L6.3687cc Engine Components::Valve Locks 1961 Plymouth Valiant Base L6.3687cc Engine Components::Valve Locks 1965-1967 Plymouth Valiant Base L6.3687cc Engine Components::Valve Locks 1970-1976 Plymouth Valiant Base L6.3687cc Engine Components::Valve Locks 1974-1975 Plymouth Valiant Brougham L6.3687cc Engine Components::Valve Locks 1975 Plymouth Valiant Custom L6.3687cc Engine Components::Valve Locks 1975 Plymouth Valiant Scamp L6.3687cc Engine Components::Valve Locks 1965-1969 Plymouth Valiant Signet L6.3687cc Engine Components::Valve Locks 1976-1980 Plymouth Volare Base L6.3687cc Engine Components::Valve Locks 1976-1977 Plymouth Volare Custom L6.3687cc Engine Components::Valve Locks 1976-1977 Plymouth Volare Premier L6.3687cc Engine Components::Valve Locks 1976 Plymouth Volare RoadRunner L6.3687cc Engine Components::Valve Locks