COMP Cams Valve Locks 3/8in Four Groove

COMP Cams Valve Locks 3/8in Four Groovelock angle and 3 8" valve stem size are a perfect replacement lock for stock engine rebuilds. They are 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

lock angle and 3/8" valve stem size are a perfect replacement lock for stock engine rebuilds. They are 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
1979-1980	Chrysler	Cordoba	300
1975-1983	Chrysler	Cordoba	Base
1980	Chrysler	Cordoba	Crown
1980-1982	Chrysler	Cordoba	LS
1983-1985	Chrysler	Fifth Avenue	Base
1977-1981	Chrysler	LeBaron	Base
1977-1981	Chrysler	LeBaron	Medallion
1978	Chrysler	LeBaron	S
1979-1981	Chrysler	LeBaron	Salon
1980-1981	Chrysler	LeBaron	Special
1979-1982	Chrysler	New Yorker	Base
1977-1978	Chrysler	New Yorker	Brougham
1971,1974-1981	Chrysler	Newport	Base
1971-1972,1974-1976	Chrysler	Newport	Custom
1971-1972	Chrysler	Newport	Royal
1978-1981	Chrysler	Town & Country	Base
1964	Dodge	330	Base
1964	Dodge	440	Base
1964	Dodge	880	Base
1964-1965	Dodge	880	Custom
1964-1970	Dodge	A100 Truck	Base
1968-1970	Dodge	A100 Truck	Sportsman
1976-1980	Dodge	Aspen	Base
1976-1977	Dodge	Aspen	Custom
1976-1977	Dodge	Aspen	Special Edition
1975-1980	Dodge	B100	Base
1971-1974	Dodge	B100 Van	Base
1971-1974	Dodge	B100 Van	Sportsman
1981-1986	Dodge	B150	Base
1975-1980	Dodge	B200	Base
1971-1974	Dodge	B200 Van	Base
1972-1974	Dodge	B200 Van	Maxi
1972-1974	Dodge	B200 Van	Maxi Wagon
1971-1974	Dodge	B200 Van	Sportsman
1981-1986	Dodge	B250	Base
1975-1980	Dodge	B300	Base
1971-1974	Dodge	B300 Van	Base
1972-1974	Dodge	B300 Van	Maxi
1972-1974	Dodge	B300 Van	Maxi Wagon
1971-1974	Dodge	B300 Van	Sportsman
1981-1986	Dodge	B350	Base
1974-1980	Dodge	CB300	Base
1970-1974	Dodge	Challenger	Base
1970-1971	Dodge	Challenger	R/T
1972	Dodge	Challenger	Rallye
1970	Dodge	Challenger	T/A
1969-1971	Dodge	Charger	500
1966-1974,1976	Dodge	Charger	Base
1967-1971	Dodge	Charger	R/T
1969	Dodge	Charger	SE
1971-1978	Dodge	Charger	Special Edition
1976	Dodge	Charger	Sport
1971	Dodge	Charger	Super Bee
1965-1970	Dodge	Coronet	440
1965-1970	Dodge	Coronet	500
1965-1966,1970-1976	Dodge	Coronet	Base
1971,1975-1976	Dodge	Coronet	Brougham
1971-1976	Dodge	Coronet	Crestwood
1971-1975	Dodge	Coronet	Custom
1966-1970	Dodge	Coronet	Deluxe
1967-1970	Dodge	Coronet	R/T
1968-1970	Dodge	Coronet	Super Bee
1975-1979,1986	Dodge	D100	Custom
1976-1978	Dodge	D100	Warlock
1979	Dodge	D100	Warlock II
1968-1974	Dodge	D100 Pickup	Base
1964-1967	Dodge	D100 Series	Base
1977-1986	Dodge	D150	Base
1978-1979	Dodge	D150	Li'l Red Express
1982-1983	Dodge	D150	Miser
1977-1980	Dodge	D200	Base
1975-1976	Dodge	D200	Custom
1968-1974	Dodge	D200 Pickup	Base
1964-1967	Dodge	D200 Series	Base
1981-1986	Dodge	D250	Base
1977-1980	Dodge	D300	Base
1975-1976	Dodge	D300	Custom
1968-1974	Dodge	D300 Pickup	Base
1964-1967	Dodge	D300 Series	Base
1981-1986	Dodge	D350	Base
1978-1981	Dodge	D400	Base
1978-1981	Dodge	D450	Base
1964-1968	Dodge	Dart	270
1964-1976	Dodge	Dart	Base
1969-1975	Dodge	Dart	Custom
1971-1972	Dodge	Dart	Demon
1971-1972	Dodge	Dart	Demon 340
1964-1969	Dodge	Dart	GT
1968-1969	Dodge	Dart	GTS
1971-1974	Dodge	Dart	Special
1974-1975	Dodge	Dart	Special Edition
1973-1976	Dodge	Dart	Sport
1973	Dodge	Dart	Sport 340
1974-1975	Dodge	Dart	Sport 360
1969-1976	Dodge	Dart	Swinger
1975-1976	Dodge	Dart	Swinger Special
1977-1981	Dodge	Diplomat	Base
1977-1983	Dodge	Diplomat	Medallion
1978	Dodge	Diplomat	S
1979-1986	Dodge	Diplomat	Salon
1984-1986	Dodge	Diplomat	SE
1974	Dodge	M300	Base
1978-1979	Dodge	Magnum	XE
1980-1983	Dodge	Mirada	Special Coupe
1968	Dodge	Monaco	500
1968-1978	Dodge	Monaco	Base
1974,1977-1978	Dodge	Monaco	Brougham
1977-1978	Dodge	Monaco	Crestwood
1974	Dodge	Monaco	Custom
1975-1976	Dodge	Monaco	Royal
1975-1976	Dodge	Monaco	Royal Brougham
1968-1969	Dodge	Polara	500
1964-1973	Dodge	Polara	Base
1971	Dodge	Polara	Brougham
1970-1973	Dodge	Polara	Custom
1970	Dodge	Polara	Special
1974-1986	Dodge	Ramcharger	Base
1981-1986	Dodge	Ramcharger	Royal SE
1975-1980	Dodge	Ramcharger	SE
1978,1980	Dodge	RD200	Base
1975-1977	Dodge	Royal Monaco	Base
1975-1977	Dodge	Royal Monaco	Brougham
1979-1981	Dodge	St. Regis	Base
1975-1977,1986	Dodge	W100	Custom
1968-1974	Dodge	W100 Pickup	Base
1964-1967	Dodge	W100 Series	Base
1977-1986	Dodge	W150	Base
1975-1980	Dodge	W200	Base
1969-1974	Dodge	W200 Pickup	Base
1964-1967	Dodge	W200 Series	Base
1981-1986	Dodge	W250	Base
1977-1980	Dodge	W300	Base
1975-1976	Dodge	W300	Custom
1968-1974	Dodge	W300 Pickup	Base
1964-1967	Dodge	W300 Series	Base
1981-1986	Dodge	W350	Base
1964-1974	Plymouth	Barracuda	Base
1970-1971	Plymouth	Barracuda	Gran Coupe
1964-1970	Plymouth	Belvedere	Base
1968-1970	Plymouth	Belvedere	Satellite
1965-1967	Plymouth	Belvedere II	Base
1970-1974	Plymouth	Cuda	Base
1970-1973	Plymouth	Duster	340
1974-1975	Plymouth	Duster	360
1970-1975	Plymouth	Duster	Base
1975	Plymouth	Duster	Custom
1976	Plymouth	Duster	Sport
1964-1967,1975-1978	Plymouth	Fury	Base
1971,1975	Plymouth	Fury	Custom
1968,1970-1975	Plymouth	Fury	Custom Suburban
1972	Plymouth	Fury	Gran Coupe
1972	Plymouth	Fury	Gran Sedan
1974	Plymouth	Fury	Police
1970	Plymouth	Fury	S-23
1976-1978	Plymouth	Fury	Salon
1965-1971,1975-1978	Plymouth	Fury	Sport
1970-1971	Plymouth	Fury	Sport GT
1968,1970-1978	Plymouth	Fury	Sport Suburban
1968,1970-1978	Plymouth	Fury	Suburban
1966,1968-1969	Plymouth	Fury	VIP
1968-1974	Plymouth	Fury I	Base
1965-1974	Plymouth	Fury II	Base
1973	Plymouth	Fury II	Custom Suburban
1965-1974	Plymouth	Fury III	Base
1972-1977,1980-1983	Plymouth	Gran Fury	Base
1975-1977	Plymouth	Gran Fury	Brougham
1975-1976	Plymouth	Gran Fury	Custom
1980,1984-1986	Plymouth	Gran Fury	Salon
1975-1976	Plymouth	Gran Fury	Sport
1967-1968	Plymouth	GTX	Base
1975-1980	Plymouth	PB100	Voyager
1974	Plymouth	PB100 Van	Voyager
1981,1983	Plymouth	PB150	Voyager
1975-1980	Plymouth	PB200	Voyager
1974	Plymouth	PB200 Van	Voyager
1974	Plymouth	PB200 Van	Voyager EX
1974	Plymouth	PB200 Van	Voyager EX Wagon
1981-1983	Plymouth	PB250	Voyager
1975-1980	Plymouth	PB300	Voyager
1974	Plymouth	PB300 Van	Voyager
1974	Plymouth	PB300 Van	Voyager EX
1974	Plymouth	PB300 Van	Voyager EX Wagon
1981-1983	Plymouth	PB350	Voyager
1968,1971-1975	Plymouth	Road Runner	Base
1965-1974	Plymouth	Satellite	Base
1971	Plymouth	Satellite	Brougham
1971-1974	Plymouth	Satellite	Custom
1971-1974	Plymouth	Satellite	Regent
1971-1974	Plymouth	Satellite	Sebring
1971-1974	Plymouth	Satellite	Sebring Plus
1968-1970	Plymouth	Satellite	Sport
1964	Plymouth	Savoy	Base
1971-1976	Plymouth	Scamp	Base
1975	Plymouth	Scamp	Brougham
1975-1976	Plymouth	Scamp	Special
1974-1981	Plymouth	Trailduster	Base
1968-1969	Plymouth	Valiant	100
1964,1966	Plymouth	Valiant	200
1964-1967,1970-1976	Plymouth	Valiant	Base
1974-1975	Plymouth	Valiant	Brougham