Holley is pleased to introduce its all-new Muscle Series Small Block Chevy Valve Covers. They're a perfect fit for L82/LT1/Z28 engines and a continuation of Holley's Vintage Series Valve Cover line, which features a classic finned design and retro styling. Developed specifically for 1958-86 Small Block Chevys with perimeter bolt patterns, they're available in four distinct finishes to suit any custom build – natural, polished, gloss black, and factory orange. Each set includes one valve cover with a twist-in oil-fill knockout (fill cap included) and one with a recessed area to place the included adhesive-backed Holley emblem or any round emblem of your choice. Inspired by 1970s-era GM engines, Muscle Series Small Block Chevy Valve Covers feature internal oil baffles (already installed), and sturdy die-cast aluminum construction to eliminate warpage and oil leaks.