Corvette Master Cylinder. Power Brake - Correct with Casting Number: 1965-1966

Restore authentic stopping power to your classic Corvette with this precisely correct Power Brake Master Cylinder, designed for 1965–1966 models. Built to match the factory specification, it’s the faithful replacement you need when restoring or maintaining a periodcorrect braking system that uses a power booster.

Authentic fit and exact markings

This master cylinder is specified with the original casting number and GM dating markers to ensure exact compatibility with your Corvette’s power braking setup. Key details include:

• Casting Number: 65L
• GM Part Reference: 5467084
• Delco Mark: Present for authentic identification
• Thread Size: 7/1624
• Includes Correct Caps: Comes with the proper caps for a complete, showroomready appearance and seal

Why this matters for your build

Generic replacements can fit, but only a model aligned to the original casting, GM number, and Delco markings delivers true compatibility with the factory powerbrake system. This means:

• Seamless integration with your factory booster and proportioning valve
• Reliable pedal feel and consistent braking response that matches your restoration’s expectations
• Cleaner, more accurate underhood aesthetics that satisfy concours and dailydriver enthusiasts alike

Who benefits from this master cylinder

Ideal for:

• Restorations aiming for authenticity to 1965–1966 Corvette power brakes
• Owners seeking a precise GMreferenced replacement rather than a generic substitute
• Conversions or maintenance where the original casting number and Delcoera markings are important for value and accuracy

Practical installation and use

For best results, benchbleed the unit before installation to remove air and ensure immediate, firm brake feel once mounted. Pair it with a compatible powerbrake booster and the correct lines to maintain factory performance. Regular inspection of seals and fittings will help sustain braking reliability over time.

What you can expect in the real world

With the correct casting number, GM reference, and Delco marking, this master cylinder offers a level of authenticity that supports both restoration accuracy and daily usability. It’s a thoughtful, reliable choice for Corvette enthusiasts who value periodcorrect components that don’t compromise on performance.