LS Valley Cover (Knock Sensor Delete) [Gen III/Gen IV]

Upgrade your Gen 3 LS engine with our sleek knock sensor delete plate, crafted to replace the bulky stock valley cover with knock sensor provisions. Many enthusiasts discard the factory cover when tuning their engines to avoid false knock detection and tuning inaccuracies. Our CNC-machined delete plate, made in-house at March Performance from high-quality 6061 aluminum, is designed to enhance both performance and aesthetics. This precision-engineered plate not only achieves the desired functionality but also adds a polished look to your engine bay. 

Includes:

Valley Cover

Mounting Hardware (GASKET NOT INCLUDED)

**Gen IV Valley Cover Not Compatible with factory oil pressure sensor; any aftermarket sensor with 1/8" NPT port will work

Compatible with:

LS Gen III: 1997-2004: 4.8-6.0L Engines

LS Gen IV: 2005+