LS Valley Cover

This LS valley cover plate is a direct-fit replacement for LS engines using a rear-mounted knock sensor. Whether you’re doing a rebuild, cleaning up a swap, or replacing a corroded original, this plate provides a solid, factory-style seal for your lifter valley. Why it’s a solid upgrade or replacement: Direct bolt-on for LS blocks with single rear knock sensor Cast aluminum construction for long-term durability and proper sealing Helps keep debris, oil, and moisture out of your lifter valley Pre-machined opening for rear knock sensor and bolt holes Fits the following LS engines: LS1, LS6 LQ4, LQ9, LM7, and other Gen III truck and car engines Not compatible with Gen IV or engines using dual knock sensors What’s included: (1) LS valley cover plate Gasket and bolts No knock sensor included Install Tip: Always use a fresh gasket or RTV sealant, and inspect knock sensor wiring and grommet for wear or moisture intrusion.