The Ford Crown Victoria, a beloved classic, often suffers from brake fade and underwhelming stopping power, especially when modified for performance or heavier loads. Many enthusiasts look to upgrade their braking systems, and the S550 Mustang's front brakes are a popular choice. This guide will delve into the feasibility, benefits, challenges, and necessary components for this upgrade.
Why Swap to S550 Mustang Brakes?
The S550 Mustang, particularly the performance models, boasts significantly larger brakes than the Crown Victoria. This translates to several key advantages:
- Increased Stopping Power: Larger rotors and calipers mean a greater clamping force, resulting in shorter stopping distances and improved braking performance. This is crucial for safety and enhanced handling, particularly during spirited driving.
- Reduced Brake Fade: Larger brake components dissipate heat more effectively, reducing the risk of brake fade under heavy use. This is vital for track days or demanding driving conditions.
- Improved Modulation: The upgraded system often provides better feel and modulation, allowing for more precise control of braking force.
What's Involved in the Swap?
This is not a simple bolt-on affair. The S550 Mustang brake system differs significantly from the Crown Victoria's, requiring fabrication and careful planning. Here's a breakdown:
1. Components Needed:
- S550 Mustang Calipers: These are the heart of the upgrade. You'll need a set of front calipers, likely requiring specific models depending on the year and trim level of the Mustang.
- S550 Mustang Rotors: These must match the calipers. Size is critical; ensure proper fitment for your Crown Victoria's wheel size and suspension geometry.
- Brake Pads: Select high-quality pads appropriate for your driving style and conditions.
- Brake Lines: The Crown Victoria's brake lines likely won't reach the S550 calipers, necessitating custom-made stainless steel braided lines or significant modification.
- Mounting Brackets: This is often the most challenging aspect. You will almost certainly require custom-fabricated brackets to securely mount the Mustang calipers to the Crown Victoria's spindle. This often involves welding and precise measurements.
- Wheel Studs/Spacers: Depending on the rotor and caliper dimensions, you might require longer wheel studs or wheel spacers to clear the larger components.
2. Fabrication and Installation:
This is a project best undertaken by experienced mechanics or fabricators. Precise measurements and welding skills are essential for safe and effective installation. Improper installation could lead to brake failure and serious injury.
Frequently Asked Questions (PAA)
Many potential upgraders have common questions about this swap. Let's address some of them:
What year S550 Mustang brakes are best for a Crown Vic?
The ideal year will depend on the specific caliper size and availability, but later-year S550 Mustangs generally offer larger brakes than earlier models. Research and compare specifications to find the best fit for your needs and available budget.
Do I need to upgrade my master cylinder?
Potentially. The larger calipers and rotors will increase the hydraulic demand on the master cylinder. While some have successfully completed the swap without changing the master cylinder, upgrading it is recommended, particularly for increased safety and responsiveness. A larger master cylinder will ensure adequate braking pressure across all four wheels.
Will my stock wheels fit?
This is highly dependent on the specific Mustang brake components you choose. The larger rotors and calipers may interfere with the existing wheels, requiring aftermarket wheels with sufficient clearance. Thorough measurements are absolutely crucial before purchasing any components.
Are there any alternative brake upgrades for the Crown Vic?
Yes, several alternatives exist, including using brakes from other Ford vehicles like the Police Interceptor or exploring aftermarket big brake kits designed specifically for the Crown Victoria. The Mustang swap is appealing due to the readily available parts and relative affordability compared to some dedicated big brake kits.
How much does this upgrade cost?
The cost varies drastically based on sourcing used versus new parts, the need for custom fabrication, and labor costs. Expect to invest a significant amount, possibly several hundred to over a thousand dollars, depending on your approach.
Conclusion: A Rewarding but Demanding Upgrade
Swapping S550 Mustang front brakes onto a Crown Victoria can significantly improve braking performance, but it requires mechanical expertise and fabrication skills. While rewarding for experienced enthusiasts, it’s not a project for beginners. Careful planning, precise measurements, and quality components are crucial for safety and a successful outcome. Remember to always prioritize safety and consult with professionals if you lack the necessary experience.
