2006-2010 Trailblazer SS Valve Covers & Accessories

Holley’s cast aluminum valve covers for GM LS engines provide a fresh, refined look without the need to relocate the coils. There’s no question the factory “coil on cover” design give the LS that signature high-tech look, but the factory brackets and coil location leave room for improvement. Clean up that signature look with Holley’s LS Valve Covers. They incorporate a radiused shape, angled coil mounting, and a billet fill cap. Plus, the coils mount directly to the cover with no need for a bracket in-between. They fit most popular LS series engines and come in Black Krinkle, Satin, Natural Cast, and Polished. Or, paint to match your vehicle’s theme! 

• Angled coil mounts deliver a smooth clean look
• Retain the high-tech look and performance of “coil on cover”
• Eliminates unsightly OE style coil brackets
• Four finishes available (Natural Cast, Satin, Black Krinkle & Polished)
• Billet aluminum oil fill cap
• Reuses original gaskets and bolts
• Fits all LS engines using LS3 or similar coils with 72mm bolt spacing
• Clearance for .750” lift cam with stock style rocker arms
• Holley’s LS covers utilize proven OE style baffles and vents