Moroso 25175 GM LS Lifter Valley Plate Aluminum

The Moroso 25175 lifter valley plate is a cost-effective aluminum alternative to the factory GM cast iron piece for LS-series engines. This lightweight aluminum construction reduces weight while providing reliable sealing and protection for the lifter valley.

Key Features:

• Precision-machined aluminum construction weighs less than factory cast iron component
• Compatible with factory and aftermarket GM LS-series engine blocks
• Eliminates knock sensor provisions for cleaner installation in racing applications
• Ideal for engines with carburetor and distributor setups that don't require knock sensors
• Prevents false knock sensor triggering from open headers, solid lifter cams, and stiff racing suspensions

This lifter valley plate is designed specifically for performance and racing applications where knock sensor functionality is not needed. The streamlined design provides a cleaner, lighter alternative while maintaining proper lifter valley sealing on GM LS-series engines.