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GM 10/12-BOLT, 330mm C6 Z51

The KORE3 330mm Rear Big-Brake Kit for the early GM 10/12-bolt passenger car rear axle application adapts high-performance, high-quality, 5th or 6th generation (C5/C6) Corvette brake components to your early GM 10/12-bolt equipped car.

This 330mm kit is an excellent option to fill a larger diameter wheel setups and adds additional thermal mass for a system capable of taking even more abuse than the base level ø305mm rotors. There is vast aftermarket support for C5/C6 Corvette rotors and brake pads to suit nearly anybody's needs and/or budget, making the KORE3 big-brake conversion a nearly unbeatable combination for the front and rear of any muscle car, whether you're grocery getting, pro-touring, or a little bit of both.



Application Notes:

Listed in the table below are makes and models compatible with this KORE3 rear disc conversion kit from the factory. The list is accurate to the best of our knowledge at this time, but is intended for your reference only. Please refer to the notes for application specific information and contact us if you have any questions regarding compatibility.


KORE3 GM 10/12-Bolt Application Chart
Year Make Model Notes
1964-1979 Buick Gran Sport, Skylark, Sommerset Regal, Special 1, 2, 3, 4
1973-1977 Buick GNX, Grand National, Regal 1, 2, 3, 4
1962-1979 Chevrolet Chevy II, Nova 1, 2, 3, 4
1964-1977 Chevrolet Chevelle, El Camino, Laguna, Malibu 1, 2, 3, 4
1967-1981 Chevrolet Camaro 1, 2, 3, 4
1968-1977 Chevrolet Monte Carlo 1, 2, 3, 4
1991-2002 GM S-Series Truck/SUV 1, 2, 3, 4
1964-1977 Pontiac GTO, Lemans 1, 2, 3, 4
1967-1981 Pontiac Firebird, Trans Am 1, 2, 3, 4
1973-1977 Pontiac Grand Prix 1, 2, 3, 4
1967-1977 Oldsmobile 442, Cutlass 1, 2, 3, 4

  1. This kit includes the parking brake compatible brackets but none of the parking brake components.


  2. This kit is compatible with C-clip axles only.


  3. Axle flanges may need to be machined for proper rotor fitment: 5.85" OD with a .08" x 45 degree chamfer preferred. Most axle shafts will need to be modified.


  4. Minimum 17" wheels are recommended, however not all 17" wheels will fit. Verify wheel fitment prior to ordering using the appropriate KORE3 fitment template. Wheel fitment is the buyer's responsibility. Please contact us if you have any questions regarding your specific application or the proper use of the templates.


  5. Vehicles equipped with staggered shocks may require two left hand calipers for proper caliper bleeder screw placement. The brackets are ambidextrous and can be installed facing forward or rearward, inline with the pinion.


The following items are included in this kit:

  • Installation instructions


  • KORE3 Early GM 10/12-Bolt Big-Brake Bracket Kit


  • FlexKORE™ 2-piece Brake Line Kit


  • C5/C6 Z51 Rear Caliper Kit


  • C5/C6 Rear Pad Kit


  • C6 Z51 Rear Rotors


Build your kit selecting from the options below. If you have any questions regarding your specific application or don't see an option you may prefer, please don't hesitate to contact us.

Price: $878.00
Quantity:
KORE3 News:

Notice: C6 Z06 calipers availability is limited. Please contact us for current stock and color options.

KORE3 is a proud dealer for Hydratech Braking Systems™, the industry leader in hydraulic brake assist conversions for the pro-touring market.

Upcoming Closures:

Independence Day (Observed): Monday July 5th

Labor Day: Monday Sept 26th

KORE3 is continuing operations during the COVID-19 coronavirus pandemic with the understanding that we will continue to do what we can, when we can, without putting ourselves, our customers, our vendors, or our community at unnecessary risk. Your patience is much appreciated while we figure out how to provide the same great products and service we've always offered in this new and challenging business environment.