Dual Flow Adjustable PCV Valve; 3/4" Valve Cover Grommet Style Applications

Does your PCV valve match your engine? Stock PCV valves are not designed to work with modified high performance engines due to their altered vacuum profiles. A mismatched PCV valve can cause oil to push out of your breathers, cause oil leaks, or contaminate your oil with piston blow-by gasses.

Now you can manage your crankcase pressure with this 6061-T6 billet aluminum dual-flow PCV valve. Once adjusted, the valve will provide optimal crankcase ventilation during both idle and cruising speeds.

This valve fits 3/4" ID valve cover grommets and 3/8" ID PCV valve lines. For 3/8" Inline applications, use our optional DF1703 PCV Valve with Inline Adapter instead.

Each Set includes:

• Valve
• Vacuum gauge fitting
• Allen wrench
• Detailed instructions

Made in USA

• Important: Not intended for use on pollution controlled vehicles.
• Note: A hand held vacuum gauge is required for proper tuning of the pcv valve.

• 1955 - 1957 Chevrolet Bel Air
• 1967 - 2002 Chevrolet Camaro
• 1986 - 1993 Chevrolet Caprice
• 1962 - 1968 Chevrolet Chevy II Nova
• 1957 - 1957 Chevrolet Del Ray
• 1958 - 1996 Chevrolet Impala
• 1955 - 1957 Chevrolet Nomad
• 1969 - 1979 Chevrolet Nova
• 1955 - 1957 Chevrolet One-Fifty Series
• 1955 - 1957 Chevrolet Two-Ten Series

• 1959 - 1960 Chevrolet El Camino
• 1930 - 2008 Chevrolet Truck

• 1965 - 1966 Ford Mustang

• 1930 - 2008 GMC Truck

• 1967 - 1967 Mercury Cougar

• 1967 - 2002 Pontiac Firebird