Moroso Fabricated Aluminum Valve Covers come TIG welded and CNC manufactured to eliminate distortion and ensure a prcise fit. Fabricated entirely from aluminum - ultra lightweight at less than 2 lbs each. One piece rigid gasket rail provides a precision-flat surface for superior sealing. Air-tight sealing allows the engine to pull greater vacuum for improved ring seal and power. Tall enough to clear all popular race combinations. Notched at each mounting location with socket-sized clearance for quick installation and removal.

One-piece Billet Rail is CNC machined from 6061-T6 Aluminum to ensure a precision flat surface for superior sealing
2.5" tall to clear aftermarket valvetrain
Oil Fill Bung welded to cover, knurled cap included
O-ring Seal Groove
Uses stock type o-ring

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Holley Holley LS Aluminum Valvecovers

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