1970-80 Camaro Power Brake Booster & Master Cylinder Replacement

1970-81 Camaro & Firebird 11" Power Brake Booster & Cast Iron Master Cylinder Combo (PB11007CN + MC7074)

Bring your second-gen F-body's brakes back to life in one box.

Instead of piecing a brake system together part by part, get a matched booster and master cylinder made to work together. This combo pairs MBM's officially GM-licensed 11" Delco Moraine stamped power brake booster with a mid-'70s GM-style cast iron master cylinder. It restores firm, confident stopping and the right look under the hood of your 1970–1981 Camaro or Firebird.

The booster: PB11007CN
This 11" single-diaphragm vacuum booster is an officially licensed GM restoration part with the Delco Moraine stamp right on the front. Its angled mounting brackets are riveted to the back, just like the original. Whether you're chasing a correct restoration or just want your driver to stop like it should, it looks right and does the job.

The master cylinder: MC7074
This cast iron unit has a 1-1/8" bore, a dual-compartment reservoir and the classic '70s GM look. It's set up for disc/disc systems, has built-in bleeders to make bleeding easier, and its ports sit on the left side. The 3-3/8" mounting holes bolt straight to the booster.

Why buy them together

• Matched for each other: the booster and master cylinder share a 3-3/8" bolt pattern, so they bolt together without adapters.
• Correct look: a Delco Moraine stamped booster plus a cast iron master cylinder give you the period-correct style.
• Officially licensed: the booster is an officially licensed GM restoration part.
• Easier bleeding: built-in bleeders on the master cylinder save time at install.
• One order, done: no hunting down parts that may or may not work together.

What's in the box

Master cylinder specs

• Bore: 1-1/8"
• Ports: 9/16" and 1/2", left side
• Reservoir: dual compartment
• Brake setup: disc/disc
• Size: 8" long x 5" high
• Mounting holes: 3-3/8" center-to-center
• Shallow bore adapter included

Fitment

• 1970–1981 Chevrolet Camaro
• 1970–1981 Pontiac Firebird

Please verify fitment for your vehicle before ordering.

Please check these before you post it. They're all from your own product pages:

• MC7074 fitment conflicts: the site lists it for 1967–69 GM cars (Camaro, Firebird, Chevelle, Nova, GTO and others), not 1970–81. I wrote 1970–81 Camaro and Firebird as you said, but you may want to add those years to the website listing so the two match.
• Firebird on the booster: the PB11007CN page only names the 1970–81 Camaro. I added the Firebird because you said it fits.
• Booster finish: the PB11007CN page says "Zinc Chromate" in one spot and "Cadmium Zinc plated" in another, so I left the finish out of the copy.
• Port threads: the MC7074 page gives two different thread sizes (9/16"-18 and 1/2"-20 in one spot, 9/16"-24 and 1/2"-18 in another). I listed only 9/16" and 1/2" so the copy doesn't state the wrong one. Add the threads once you confirm them.

Sources: