The 12 degree valve covers we have are good for all Profiler and Reher and Morrison 12 Degree heads, and will NOT work on the BRODIX 12 degree heads.

  • “WILLIAMS Performance” Fabricated billet rail aluminum valve covers
  • These trick fabricated valve covers that are precisionly built by hand from highest quality aluminum
  • 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 2-5/8″ 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!

  • 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)