Wilwood 260-16521-P Tandem Compact Brake Master Cylinder Bore Corvette - 15/16 C2

The Wilwood 260-16521-P Tandem Compact Master Cylinder is specifically engineered for manual brake applications on 1963-1967 Corvette C2 models. This high-performance master cylinder features a 15/16" bore diameter and comes complete with a specific length 3/8-24 diameter pushrod for precise fitment and optimal braking performance.

Key Features:

• Machined from high-pressure die-cast aluminum for superior strength and reduced weight
• Weighs only 3.25 lbs—more than 50% lighter than cast-iron factory tandem units
• Full 1.10" stroke provides adequate fluid volume for high-performance multi-piston calipers
• Ball burnished polished aluminum finish for corrosion resistance and clean appearance
• Dual fluid outputs (1/2"-20 UNF) positioned on both sides of the bore for flexible installation
• Slotted mount flanges with 3.22" to 3.40" hole spacing bolt directly to factory Corvette firewall studs
• Compatible with most domestic cars and trucks from the same era

What's Included:

• Tandem master cylinder assembly
• Specific length pushrod for manual brake applications
• Plugs and fittings to accommodate 3/8"-24, 1/2"-20, and 9/16"-18 IF brake lines

This compact tandem master cylinder is ideal for retrofitting 1963-64 drum brake cars to tandem circuit systems, upgrading vehicles with Wilwood big brake kits, or providing a softer pedal feel with reduced effort on factory non-power disc brake equipped 1965-67 models. The 15/16" bore size is optimized to deliver the correct fluid output for balanced braking performance.

Important Note: Due to space constraints, the optional proportioning valve mounting kit (P/N 260-14248) is not compatible with these C2 Corvette tandem master cylinders. Residual valves for drum brake applications and adjustable proportioning valves are available separately for fine-tuning brake bias.