It is no secret that 1967 Corvette master cylinders, both standard and power, have been on the market for years. Many enthusiasts have gotten by with these basic replacements in the past for the simple fact that there were no other options. Well, what about the dual bleeders that were on the original master cylinders? Or the “DC” and “PG” trademarks that were stamped into the front pad? How about the original GM casting numbers? To some, these details may seem pointless but to an NCRS judge, they could matter.
With demand for Corvette parts growing, the quality of the parts are becoming much more of a factor. While yesterdays parts may be “good enough”, there is still room for improvement in the correctness and quality of many of those parts. Zip Corvette has for years hunted down and purchased many of the most correct parts a best in show Corvette would require. You can now add 1967-1982 master cylinders to that forever growing list.
There are two 1967 master cylinder options, one of which will be correct for your Corvette. The first is for a 1967 Corvette with standard or power brakes but not the J56 special heavy duty brakes factory option (only 267 made). This master cylinder is reproduced to exact specifications as original. It has the correct GM casting number (5455509), “DC” trademark stamped into the front pad for identification, and dual bleeder screws. It also has a 1″ bore as all standard and power brake Corvettes had and comes with a reproduction cap.
The second master cylinder option is for 1967 Corvettes that had the optional J56 special heavy duty brake package. This master cylinder also comes with the correct GM casting number (5460346), dual bleeder screws, and reproduction cap. The J56 option master cylinder had a trademark stamping but used “PG” instead of “DC” for identification purposes. This master cylinder comes with a larger 1 1/8″ bore hints the name heavy-duty.