Non-original Corvette Master Cylinders stick out like a sore thumb. Just pop the hood on any 1968-1982 Corvette and you can very easily identify the originality of your master cylinder through small yet important details. If you’re not sure if you have a correct master cylinder, consider researching through a 1968-1982 Corvette NCRS Judging Manual. The NCRS manuals are full of information that will break down each item on your Corvette.

If your Corvette’s brake system needs a new master cylinder, you have several choices through Zip Corvette. First, you can rebuild your Corvette’s master cylinder with a rebuild kit. These kits include all the seals, boots, clips and pistons required for overhauling your original cylinder. If rebuilding your unit is not an option, consider purchasing a new master cylinder. Zip has master cylinders that are great replacements (a little cheaper) or 100% correct and will pass NCRS judging standards.

For years, 100% correct master cylinders were only found in the junk yards and required rebuild. Just recently, a new reproduction master cylinder became available. These master cylinders are manufactured to exact factory specifications. These units include the original style casting with casting number, factory exterior paint coating, a reproduction cap, stamped code (PG or DC) denoting manual or power brakes and dual brake bleeders as applicable. Each Master Cylinder from 1968-1976 is equipped with the correct 1″ bore for standard brakes; 1 1/8″ bore for power brake cars. All 77-82 Corvette Master Cylinders come with a 1 1/8″ bore, as this size became the standard. To top it off, each master cylinder includes a reproduction twin dome cap with correct color and lettering for complete authenticity.

Corvette Master Cylinder Casting #
Corvette Master Cylinder Casting #

This image shows the detail included in our reproduction master cylinders. Each one is manufactured with the correct shade of black and has the casting number displayed as shown. You can also see the reproduction cap which has the original style twin domes and correct tint with lettering.

Corvette Master Cylinder W/Dual Bleeders
Corvette Master Cylinder W/Dual Bleeders

Here you can see the reverse side of our 1973-1974E Corvette reproduction Master Cylinder. Pictured are the correct dual brake bleeder valves and connections for both master cylinder brake lines.

Note: Only 1968-1973E Corvette Master Cylinders came with dual bleeder valves.

Corvette Master Cylinder W/Correct Stamping and Reproduction Cap
Corvette Master Cylinder W/Correct Stamp & Cap

This is a top view of a 1968-1972 Corvette Reproduction Master Cylinder for power brake cars. Here you can see the correct color and lettering on the master cylinder cap. Also pictured are the dual brake bleeders and “PG” stamping which marks this unit as a power brake master cylinder.

Note: Only 1968-1972 Corvette Master Cylinders came with “DC” or “PG” stamps.

1968-1982 Corvette Parts were forever changing as the generation continued to grow. Though many parts saw drastic modifications, there were other Corvette Parts that saw small yet important differences. Today’s enthusiast needs to be aware of these changes when restoring a C3 Corvette. Don’t be fooled by look-a-likes or so-called original style master cylinders when you can be sure you are getting the real deal from Zip Corvette. All of our reproduction master cylinders are 100% correct and will pass NCRS judging standards.

Purchase online at Zip Corvette Parts

2 thoughts on “Corvette Reproduction Master Cylinders for 1968-1982 C3

  1. Not sure if this is where I ask questions… My brakes are now spongy, not sure if the master cylinder needs rebuilt or if its the booster. I hear air coming out under the dash where the brake rod goes through the fire wall.

  2. Howard:
    You can start with the booster, but usually, when they go bad, the brake pedal gets very hard. I would start with a booster and master cylinder. You need to make sure that the brakes are bled very well. Good Luck!

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