Check the listing for details. 7" Booster Master Cylinder Disc Disc Prop Valve Kit for Under Floor Frame Mount. Condition: New. Listed at 154.87 USD. This is a Brand New 7" Dual Frame Mount Power Brake Booster Master Cylinder & Disc/Disc Valve Kit. This booster will fit most after market frame mount pedal assemblies. The booster bolt pattern is 3 3/8" center to center in a perfect square, so please double check to make sure it will fit your pedal Features:7" Dual Zinc brake booster with Bail Top Master CylinderThis 7" booster is ideal for most small to mid size street rods and customs. The booster mounts with a 4-bolt pattern. The 4 bolts are in a perfect square and are 3 3/8" apart (center to center). The master cylinder in this kit is the Bail Top style and features a 1" bore This master has ports on both sides (9/16" and 1/2") and includes plugs to block the unused ports. Brand new Brass Proportioning Valve and Zinc Finished Left Side MountThis combination proportioning valve is for Disc/Disc applicationsPackage Includes: Brake Bail Top Master Cylinder with 1" Bore the ports measure 9/16" and 1/2" Zinc 7" Dual Booster Disc/Disc Proportioning Valve KitBrake Lines & Left Side Mount BracketThis is for Disc/Disc Applications OnlyPlease Note: Professional Installation is Highly Recommended (No Instruction Included) Frame Mount 7" Dual Booster + 3512 + PV4 Side Mount Bracket Kit