AFR SB-Ford Valve Covers 421991 Heavy-duty black alkyd caps and

Heavy-duty black alkyd caps and rotors are also available as lower cost alternatives

Side A is 1/16" NPT

1974-1986 Chevrolet K10 Suburban

Severe duty applications or newly installed systems may require more frequent maintenance

Dry = Cool and this liner keeps you dry

AFR SB-Ford Valve Covers 421991 Heavy-duty black alkyd caps andHigh Quality CNC Engraved Valve Covers AFR high quality Polished Aluminum and Black Powder Coat CNC Engraved Valve Covers. With multiple heights to fit most applications these valve covers are a great addition to any engine dressing. All valve covers come with rubber grommets for PCV ventilation. For over thirty years Airflow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics. Product Description: