1963 – 1980 General Motors NOS Positive Crankcase Ventilation Valve GM # 6421972

This new old stock crankcase ventilation valve was manufactured by General Motors for use on the following models:

Buick 1977 – 1979 All with 350R, 400, 403.

Cadillac 1976 – 1979 All,

Cadillac 1980 All with 368.

Chevrolet 1966 Chevy, Chevelle with 327 except AIR, closed positive ventilation, Sp-H/Per.,

Chevrolet 1967 Passenger with 327 except AIR, closed positive ventilation, Sp-H/Per, 

Chevrolet 1967 Chevy, Camaro, Chevelle 327, 350 with 4BC except closed positive ventilation,

Chevrolet 1967 Chevy, Camaro, Chevelle 8 cylinder except closed positive ventilation,

Chevrolet Pickup 1963 – 1964 Series 10-20-30 with 292 except positive ventilation, HD, A/CL,

Chevrolet Pickup 1965 – 1966 Series 10-20-30 with 292 except AIR,  

Chevrolet Pickup 1967 Series 10-20-30 with 292, 

Chevrolet Truck 1967 – 1968 Series 40-50-60 with 292. 

GMC Truck 1965 Series 50 thru 960 with 292 engine (after jobs) – 6421974,

GMC Truck 1966 Series 50 thru 960 with 292 engine – 6421974,

GMC Truck 1967 with 292 6 cylinder – 6421974,

GMC Truck 1968 with 292 6 cylinder (first jobs),

Oldsmobile 1964 – 1965 V8 with closed P.V.C.,

Oldsmobile 1966 – 1974 V8,

Oldsmobile 1975 All Cutlass, 88 (A, B) with 350 engine,

Oldsmobile 1975 with 400, 455 engine,

Oldsmobile 1976 Cutlass, 88, 98, Toronado (A, B, C, E) with 350, 455 engine,

Oldsmobile 1977 – 1979 with 350R, 403 engine,

Pontiac 1976 LeMans, Parisienne, Firebird, Grand Prix (A, B, F, G) with 350, 400, 455,

Pontiac 1977 – 1979  All with 350P, 350R, 400, 403.

Replaced  6421974 on 7-67

AC Type CV-679C

NOTE:  Images show the condition and what is included in the sale.