For use with Big Block Chevy applications, including DART Heads.
These valve covers WILL clear T&D Raockers.


  • “WILLIAMS Performance” Big Block Chevrolet fabricated billet rail aluminum valve covers
  • These trick fabricated valve covers that are precisionly built by hand from highest quality aluminum, and anodized black, inside and out.
  • NEW & IMPROVED 3/8″ billet rails insure no oil leaks and an air tight seal for maximum vacuum retention
  • Each cover is individually tested before shipping
  • Precision welds insure a distortion-free fit
  • The covers are polished to resist oil staining
  • Built to clear most rocker combinations, stud girdles and shaft rockers (Including T&D Rockers,  and measure 3-3/8″ deep.
  • The valve cover stud kits are not included

    BIONDO FAMILY PROMISE: If these aren’t the nicest and tightest sealing valve covers on the market we will give you your FULL money back! Similar valve covers made are sold for over $400. Made in the USA.

    The holes for breathers, relief valves, or bungs are not pre-drilled.

    Bungs, and Relief Valves are available, but not included. (see below)