This is a/an NOS AC PCV Valve that fit(s) the following applications:
1964 Oldsmobile w/330 Eng P.C.V.
1965 Oldsmobile – All V8 (Ex Closed P.C.V. System)
Made in USA
Manufactured by AC Spark Plug, Flint Michigan
Part # CV 639
Group # 1.745
Replaces OEM Part # 6420092
Condition is NOS.