A-Premium LS Gen 4 Valley Cover Plate Kit Non-AFM/DOD, Aluminum Block-Off with Gasket & Bolts

A-Premium's LS Gen 4 (IV) Valley Cover Plate Kit is an aluminum non-AFM/DOD block off kit that replaces the factory valley cover to eliminate AFM/DOD components and restore a solid LS valley.

This precision-machined valley cover plate kit is built for GM Gen IV LS engines (LS2, LS3, LS7, L92) and late-model Chevy, GMC and Cadillac trucks and SUVs from roughly 2007–2013. It provides a clean, durable replacement for the factory valley cover used with active fuel management (AFM) or displacement on demand (DOD) systems, and includes all the hardware and gasket needed for a straightforward installation when converting or servicing your engine valley.

What does this valley cover kit replace and why?

The kit replaces the factory valley cover that houses AFM/DOD components so you can remove those systems and install a solid cover in their place. It prevents exposure of the valley and seals the lifter valley after AFM/DOD components are removed, improving durability and simplifying the engine bay layout.

• Direct replacement for Gen IV LS valley cover locations.
• Designed for engines with AFM/DOD systems that have been deleted or removed.
• Includes gasket and bolts for a complete valve cover-to-block seal.

Which vehicles and engines will this kit fit?

This product is intended for Gen 4 LS-family V8 engines — 4.8L, 5.3L, 6.0L and 6.2L displacements — commonly found in Chevrolet, GMC and Cadillac trucks and SUVs built between about 2007 and 2013. Confirm part numbers and engine application before purchasing to ensure compatibility with your specific model and year.

• Compatible engines: LS2, LS3, LS7, L92 and other Gen IV variants.
• Typical vehicles: Silverado, Sierra, Tahoe, Yukon, Escalade, Express, Savana.
• Cross-references: GM part numbers 12598832 and 12610141.

What hardware and components are included in the kit?

The kit ships as a ready-to-install assembly with a machined aluminum valley cover, a replacement valley pan gasket, and a full set of bolts. That means you won’t need to source extra fasteners or seals for a standard AFM/DOD block-off conversion.

• 1 x non-AFM/DOD aluminum valley cover plate.
• 1 x precision-cut valley pan gasket for a proper seal.
• 11 x mounting bolts sized for factory locations.

How difficult is installation and what should I prepare for?

Installation is moderately straightforward for someone familiar with engine service: remove the factory valley cover and AFM/DOD parts, clean the sealing surfaces, fit the new gasket and secure the A-Premium cover with the supplied bolts. Torque to factory specifications and inspect for leaks after initial run-in.

• Recommended tools: basic hand tools, torque wrench, gasket scraper, and cleaner.
• Prep step: verify AFM/DOD components are fully removed before fitting the cover.
• Post-install: run the engine and re-check torque and seals for leaks.

Who is this for: This A-Premium LS Gen 4 valley cover plate kit is aimed at performance builders, engine rebuilders and vehicle owners converting or deleting AFM/DOD systems on Gen IV LS engines. If you want a durable aluminum replacement that includes the gasket and bolts for a complete block-off solution on common Chevrolet, GMC and Cadillac V8s, this kit provides the essential parts without unnecessary extras.