Billet Valve Cover Chevy BB Tall Ball Milled Polished. The valve covers are produced from a high grade aluminum that is polished to Billet Specialties standards and each design is CNC machined in the USA. have a 1.25” diameter breather hole positioned between the rockers to reduce oil splash. Use tall if using roller rockers and/or stud girdles. Valve Covers Sold in Pairs. Includes Stainless Bolts, Grommets and Accepts 1-1/4” Breathers.
This part fits most Chevy Cars and Trucks.; exceptions may apply. Please read the complete description to see if this part fits your specific vehicle and application.