Manley 11573-8 Manley Severe Duty Series Stainless Steel Valves Be Cool Catch Cans with a stall speed range

with a stall speed range of 2

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

or naturally aspirated engines up to 1

The downward exhaust path also reduces the chance of exhaust entering the cabin through an open rear window or tailgate

The specific length is matched to the valvetrain configuration for each application

Manley 11573-8 Manley Severe Duty Series Stainless Steel Valves Be Cool Catch Cans with a stall speed rangeThe 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