SRN 8 Inch Power Brake Booster Master Cylinder Kit With Disc/Drum Prop Valve & Firewall Bracket

If you're building a hot rod or swapping brakes, this SRN power brake booster kit has your back.

It's brand new and includes an 8-inch booster, master cylinder, combination prop valve (for disc/drum setups), and a firewall bracket.

This is a universal kit, so it's perfect for custom builds—part number BCK-347 (swap to 7004Z brkt).

Whether you're converting to disc brakes or just upgrading, this kit gives you all the major pieces in one box.

Performance-oriented and ready to install.

If you want stopping power that feels modern in your classic, this is a solid choice.

SRN quality with universal fit.