1955–57 Chevy 8" Dual Power Brake Booster Kit | Tri-Five

8" Dual Diaphragm Power Brake Booster Kit with Straight Brackets: Black Powder Coat, 1955–1957 Chevy Tri-Five

Bring modern stopping power to your Tri-Five Chevy without crowding the engine bay. This kit pairs a black powder-coated 8" dual diaphragm booster with straight mounting brackets made for 1955, 1956, and 1957 Chevy cars. The compact 8" size leaves room for tall valve covers, big-block swaps, and aftermarket heads, while the dual diaphragm design delivers a firm, confident pedal.

The black powder coat resists chips and corrosion and gives your engine bay a clean, finished look. The straight brackets mount the booster in line with the pedal for a clean installation on the Tri-Five firewall. Every booster is vacuum tested and passes a quality inspection before it ships.

What’s Included

• 8" dual diaphragm power brake booster (PB8531PC), black powder coat
• Straight mounting brackets for 1955–1957 Chevy
• Pedal rod extension and clevis

Features

• Compact 8" size clears tall valve covers and engine swaps
• Dual diaphragm design for strong braking assist
• Straight brackets designed for the Tri-Five firewall
• Durable black powder coat finish
• Standard GM bolt patterns, including the 3-3/8" square pattern
• Vacuum tested and quality inspected before shipping

Fits 1955–1957 Chevy Tri-Five Cars

• Bel Air, including convertible, hardtop, and sedan
• 210 and Del Ray
• 150
• Nomad, Handyman, Townsman, and Beauville wagons
• Sedan Delivery

Master cylinder, proportioning valve, and brake lines are sold separately. Need just the booster? See the PB8531PC.