Aeroflow 6 Psi Blow Off Valve Spring Use With -8 To -12" Hg Step fittings fuel/Air/water 8mm (5/8") brass barb is

8mm (5/8") brass barb is designed to fit on top of the block next to the thermostat housing

Part Number: AF42-1011

Part Number: AF118-20S

They are available in a variety of sizes and finishes to accommodate a wide range of applications

Proflow's bump tube fittings and adaptors make it easy to convert power steering lines to AN lines for custom plumbing

Aeroflow 6 Psi Blow Off Valve Spring Use With -8 To -12" Hg Step fittings fuel/Air/water 8mm (5/8") brass barb isPart Number: AF59 2152 these replacement blow of valve springs are specificallydesigned to fit inside the Aeroflow performance 50mm blowoff valves. Both of our Aeroflow performance blow off valves feature a 11psi spring from out of the box. If you wish to change this spring, weoffer either a softer 6 psi for turbo setups or a 2 psi spring designed for supercharger options.