Manley 11573-8 Manley Severe Duty Series Stainless Steel Valves Be Cool Catch Cans Installation is a two-step process

Installation is a two-step process — mount the Grant installation kit to your column

A fresh air filter is the first line of defense against engine wear from airborne contaminants that can score cylinder walls and rings

Catco recommends replacing oxygen sensors at the same time for optimal system performance

The kit is ideal for restomod builds where daily drivability and cold-start convenience are desired without sacrificing under-hood aesthetics

SKU 656450 is backed by the manufacturer's quality guarantee and our satisfaction commitment

Manley 11573-8 Manley Severe Duty Series Stainless Steel Valves Be Cool Catch Cans Installation is a two-step processThe Manley 11573 8 Manley Severe Duty Series Stainless Steel Valves are high performance engine valves engineered for intake and exhaust duty in street, strip, and marine engines. As the gateway controlling airflow into and out of the combustion chamber, valve quality directly affects flow, sealing, and high RPM stability. These valves are designed for enthusiasts who demand consistent performance at elevated RPM. CNC machined from premium stainless