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Tilton 77 Series Pivot-Type Master Cylinder Designed for Use Tilton's Low Friction Pivot-Type Balance Bar and Pedal Assemblies.
Designed to pivot at the rear, these master cylinders greatly reduce friction over conventional balance bars and fix-mounted master cylinders. The reduced friction within the pedal/master cylinders system provides repeatable braking and exceptional feedback to driver.
77-Series master cylinders offer the latest in racing master cylinder technology in a very lightweight and compact design. The rear spherical bearing mount and one-piece piston/pushrod eliminate side thrust into the master cylinder bore, providing consistent and repeatable braking. 77-Series master cylinders are designed specifically for use with Tilton 900-Series pedal assemblies and balance bars.
Features:
- Weighs only 0.3 lbs (3/4" bore)
- 3.4" body length
- Handbuilt and blueprinted for cut-off port travel. Cutoff port distance may be altered for increased/decreased pedal free play using variable thickness shims (sold separately).
- One-piece steel piston/pushrod
- Spherical bearings (rear pivot) are positively retained with circlips
- AN3 (3/8"-24) outlet port, AN6 (9/16"-18) crush washer seal inlet port
NOTE: AN4 inlet fitting pictured installed in master cylinder above must be purchased seperatly.
 
Cut-off Port Shim Kits
| Shim Thickness |
5/8", 7/10", 3/4" bore |
13/16", 7/8" bore |
15/16", 1" bore |
| .020", 5 pack |
77-412-20-5 |
77-414-20-5 |
77-416-20-5 |
| .030", 5 pack |
77-412-30-5 |
77-414-30-5 |
77-416-30-5 |
| .040", 5 pack |
77-412-40-5 |
77-414-40-5 |
77-416-40-5 |
| .050", 5 pack |
77-412-50-5 |
77-414-50-5 |
77-416-50-5 |
| .060", 5 pack |
77-412-60-5 |
77-414-60-5 |
77-416-60-5 |
Service Parts
| Bore Size |
Pressure Seal |
Pressure Seal Shim |
Return Spring |
Spring Guide Pin |
Pivot Bearing |
| 5/8" |
75-310 |
75-060 |
75-010 |
75-020 |
COM-5 |
| 7/10" |
75-311 |
75-061 |
75-010 |
75-020 |
COM-5 |
| 3/4" |
75-312 |
75-062 |
75-010 |
75-020 |
COM-5 |
| 13/16" |
75-313 |
75-063 |
75-010 |
75-020 |
COM-5 |
| 7/8" |
75-314 |
75-064 |
75-010 |
75-020 |
COM-5 |
| 15/16" |
75-315 |
75-065 |
75-010 |
75-020 |
COM-5 |
| 1" |
75-316 |
75-066 |
75-010 |
75-020 |
COM-5 |
Complete Tilton Listing Complete Master Cylinder Listing
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