Chevy SBC 350 Freeze Plug Kit Pop-Off plates are designed to

Pop-Off plates are designed to release the high pressure that builds up inside of the engine to prevent damaging or cracking your supercharger components

They include all hardware for quick and easy installation

while the extruded body has a tensile strength over 60

Speedmaster stainless steel fuel line kits will fit any dual double pumper carb installations

Built with sturdy

Chevy SBC 350 Freeze Plug Kit Pop-Off plates are designed toSpeedmaster freeze plugs will not rot out, like lower cost steel ones. Your new engine assembly deserves the best. Don't get stuck trying to replace a leaking steel freeze plug behind a motor mount a year or two from now! These kits include all of the necessary external block freeze plugs, and cam and oil galley plugs for one complete engine.