For SB Chevy Fabricated Aluminum Tall Valve Covers 1/4" Billet Rail Sbc 350 383 400 Fits SB Chevy 283 305 327 350 383 400 Engines Tall Style (Will Clear Roller Rockers & Stud Girdles) The Finest Valve Covers For The Sb Chevy Engines These Valve Covers are Clear Anodized For Easy Cleaning & Scratch Resistance Including all items in the picture