The ProCharger ProFlow Surge / Bypass Valve (Rev. 2) (Part Number 3CASS-003) is an anti-surge blow-off valve engineered for Small Block (SB) and Big Block (BB) Chevy supercharger applications. It is specifically designed to safely vent excess boost pressure and prevent compressor surge when you rapidly close the throttle.Key Details & SpecsApplication: Universal / Chevrolet Small Block & Big Block supercharger setupsPart Number: AV008A-001 (Base unit) or 3CASS-003 for the full assemblyPrice: Approximately $268 (Base unit)Function: Bypasses pressurized air back into the intake (or vents to the atmosphere) to prevent turbo/supercharger compressor stall when the throttle blades shut.
