1963 – 1965 Chevrolet NOS Engine Positive Crankcase Ventilation Valve GM # 6421978

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

Chevrolet 1963 Impala, Biscayne, Bel Air with 409, 427,

Chevrolet 1964 Biscayne, Bel Air with 409,

Chevrolet 1965 Corvette All with 396,

Chevrolet 1965 Chevelle SS, Chevelle SS Convertible with 396,

Chevrolet 1965 Biscayne, Bel Air with 396, 409.

Stamped:  AC SPARK PLUG TYPE CV 580C

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