company name slash logo burger menu for mobile

KORE3 Technical Info...

If it's technical...this is where to find it. Click the shortcut links in the table of contents below to jump directly to the section or scroll down. For answers to some of the most commonly asked questions regarding KORE3 products, please visit the FAQ page.

  • KORE3 Big-Brake Conversions - Click
    • KORE3 Big-Brake Application Chart - Click
    • Disc Brake Wheel Fitment Templates - Click

KORE3 Big-Brake Conversions:

KORE3 big-brake kits are one of the most cost effective ways to put high performance, oversize disc brakes on your classic muscle car. Our kits have been designed to adapt massive 5th and/or 6th generation (C5/C6) Corvette components to the applications listed below, for maximum value and flexibility since each and every car is a custom application. KORE3 offers several levels of front big-brake kits from ø325mm [ø12.8"] to ø355mm [ø14.0"] and rears from ø305mm [ø12.0"] to ø340mm [ø13.4"]. Wheel size, vehicle purpose, and budget all factor in to what the best kit for your application may be. Contact us today if you would like to discuss your application.

KORE3 currently offers numerous big-brake kits for an ever expanding number of applications. All kits can be purchased either as individual components or in complete kit form in order to best serve our customers. Please refer to the KORE3 Big-Brake Application Chart below for relevant information and compatibility notes. If your application is not listed yet, please contact us as we are continually developing new kits.

Big brakes inherently necessitate big wheels...ø17 inches or larger in this case. Please note that not all ø17" and larger wheels will clear the calipers, particularly between the face of the caliper and the spokes of the wheel. Download the appropriate KORE3 Wheel Fitment Templates for your application and kit selection and verify wheel clearance/interference prior to ordering.

KORE3 Big-Brake Application Chart
Year Make Model Spindle Notes
1964-1972 Buick Grand Sport, Skylark, Special, Sport Wagon Short 1,3
1973-1974 Buick Apollo Short 1,3
1973-1977 Buick Century Tall 5,6
1975 Buick Apollo Tall 5,6
1975-1979 Buick Skylark Tall 5,6
1977-1978 Buick Riviera Tall 5,6
1977-1994 Buick Electra & Le Sabre Wagons (full size) Tall 5,6
1982-1988 Buick Century, Grand National, Regal Short 2,3
1976 Cadillac Seville Tall 5,6
1977-1984 Cadillac Deville Tall 5,6
1977-1994 Cadillac Fleetwood Tall 5,6
1985-1994 Cadillac Brougham Tall 5,6
1964-1972 Chevy Chevelle, El Camino, Malibu, Monte Carlo Short 1,3
1967-1969 Chevy Camaro Short 4
1968-1974 Chevy Nova Short 1,3
1970-1981 Chevy Camaro Tall 5,6
1973-1977 Chevy Chevelle, Monte Carlo Tall 5,6
1975-1979 Chevy Nova Tall 5,6
1977-1996 Chevy Belair, Biscayne, Caprice, Impala (full size) Tall 5,6
1978-1988 Chevy Chevelle, El Camino, Monte Carlo Short 2,3
1982-1992 Chevy Camaro (w/o 1LE Performance Package) F3 6
1993-2002 Chevy Camaro F4 6
1973-1977 GMC Sprint Tall 5,6
1964-1972 Olds
mobile
 442, F-85, Cutlass Short 1,3
1973-1974 Olds
mobile
 Omega Short 1,3
1973-1977 Olds
mobile
 442, Cutlass Tall 5,6
1975-1979 Olds
mobile
 Omega Tall 5,6
1977-1992 Olds
mobile
 98, Delta 88 (full size) Tall 5,6
1978-1988 Olds
mobile
 442, Cutlass Short 2,3
1964-1972 Pontiac GTO, Lemans, T-37 Short 1,3
1967-1969 Pontiac Firebird Short 4
1969-1972 Pontiac Grand Prix Short 1,3
1970-1981 Pontiac Firebird Tall 5,6
1971-1974 Pontiac Ventura Short 1,3
1973-1977 Pontiac Grand Prix, Lemans Tall 5,6
1975-1977 Pontiac Ventura Tall 5,6
1977-1979 Pontiac Phoenix Tall 5,6
1977-1986 Pontiac Bonneville, Catalina, Grandville (full size) Tall 5,6
1978-1988 Pontiac Grand Prix, GTO, Lemans, Tempest Short 2,3
1982-1992 Pontiac Firebird (w/o 1LE Performance Package) F3 6
1993-2002 Pontiac Firebird F4 6
Notes
  1. GM short-spindle (forged): Use KORE3 short-spindle big-brake kit. Three (3) hardware choices depending on version of short-spindle.
  2. GM short-spindle (cast) with integral caliper mount. KORE3 does not currently offer a kit for this application.
  3. Spindle swap candidate.
  4. 1967-1969 F-body: Use KORE3 short-spindle big-brake kit.
  5. GM tall-spindle: Outer wheel bearing spindle shaft diameter (click for image) must be specified when purchasing KORE3 billet hubs: Ø.750" or Ø.844" ID bearings were both used on different variations of the GM tall-spindle.
  6. Minor irreversible spindle modifications required.
Return to top

KORE3 C5/C6 Ø325mm Front Fitment Template:

Template gives an outline of the front C5/C6 brake kit (Ø325mm) which allows wheel fitment to be verified prior to ordering. Instructions are printed on the template.

C5/C6 Ø325mm Front Fitment Template

KORE3 C5/C6 Ø305mm Rear Fitment Template:

Template gives an outline of the rear C5/C6 brake kit (Ø305mm) which allows wheel fitment to be verified prior to ordering. Instructions are printed on the template.

C5/C6 Ø305mm Rear Fitment Template

KORE3 C6 Z51 Ø340mm Front Fitment Template:

Template gives an outline of the front C6 Z51 brake kit (Ø340mm) which allows wheel fitment to be verified prior to ordering. Instructions are printed on the template.

C6 Z51 Ø340mm Front Fitment Template

KORE3 Hybrid C5/C6 Ø355mm Front Fitment Template:

Template gives an outline of the front C5/C6 KORE3 Hybrid brake kit (Ø355mm w/2-piston PBR floating calipers) which allows wheel fitment to be verified prior to ordering. Instructions are printed on the template.

C5/C6 KORE3 Hybrid Ø355mm Front Fitment Template

KORE3 C6 Z51 Ø330mm Rear Fitment Template:

Template gives an outline of the rear C6 Z51 brake kit (Ø330mm) which allows wheel fitment to be verified prior to ordering. Instructions are printed on the template.

C6 Z51 Ø330mm Rear Fitment Template

KORE3 C6 Z06 Ø355mm Front Fitment Template:

Template gives an outline of the front C6 Z06 brake kit (Ø355mm) which allows wheel fitment to be verified prior to ordering. Instructions are printed on the template.

C6 Z06 Ø355mm Front Fitment Template

KORE3 C6 Z06 Ø340mm Rear Fitment Template:

Template gives an outline of the rear C6 Z06 brake kit (Ø340mm) which allows wheel fitment to be verified prior to ordering. Instructions are printed on the template.

C6 Z06 Ø340mm Rear Fitment Template
Return to top
KORE3 News:

Notice: KORE3 is currently stocking reproduction C6 and C6 Z51 2-piston front and 1-piston rear calipers, they're on hand and ready to ship. Please contact us with any questions.


KORE3 is a dealer for Hydratech Braking Systems™, the industry leader in hydraulic brake assist conversions for the pro-touring market. Please plan for extended deliveries on all hydroboost units until further notice while they shift their production/mfg facilities.

Upcoming Closures:

Wed-Fri Nov 27th-29th

Mon-Fri Dec 23rd-27th

Wed Jan 1st


If you call us after business hours, or during a closure, we will return your call as soon as we can upon our return. Please Email us at info@kore3.com as well if you require a quicker response.