DEMOTOR PERFORMANCE Universal 7" Single Diaphragm Brake Booster Hot Rod Street Black

Description 7 Black Single Diaphragm brake booster.This 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 booster requires 18 of vacuum to operate properly.With this vacuum level the booster will produce a maximum pressure output of 950 psi with a 1 bore master cylinder.This pressure level works well for four wheel drum systems and disc/drum vehicles which are relatively light.Note:We highly recommend you purchase the booster and the master cylinder from our store together, which will perfectly compatible with each other.