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.
Discover more in our FAQ
How long does it take to process an order?
Orders are processed within 1–5 business days. Once your order is ready to ship, you’ll receive a confirmation email with tracking information.
Do you ship internationally?
Yes — we offer international shipping on a custom request basis. If you’re outside the U.S. and want to place an order, reach out to us directly with your location and the parts you’re interested in. We’ll provide a personalized shipping quote and help coordinate the best delivery method for your region.
Please note that international customers are responsible for any import duties, taxes, or fees charged by their country.
What is your return policy?
We want you to be completely satisfied with your order. If something isn’t right, you can request a return within 30 days of delivery for most items. Products must be in their original condition — unused, uninstalled, and in their original packaging.
To start a return, contact our team with your order number and details, and we’ll walk you through the process. Once approved, refunds are issued to your original payment method, minus any applicable shipping costs.
Please note: custom, electrical, and special-order items are non-returnable. If you receive a damaged or incorrect part, let us know right away — we’ll make it right.
