8" Dual Diaphragm Power Brake Booster Kit: Black Powder Coat, 1958–1970 Chevy Impala and Full-Size B-Body

8" Dual Diaphragm Power Brake Booster Kit: Black Powder Coat, 1958–1970 Chevy Impala and Full-Size B-Body

Give your full-size Chevy the confident stopping power it needs without crowding the engine bay. This kit pairs a black powder-coated 8" dual diaphragm booster with mounting brackets made for 1958–1970 Impala, Bel Air, Biscayne, Caprice, and other full-size Chevys. The compact 8" size leaves room for tall valve covers, big-block engines, and aftermarket heads. The dual diaphragm design delivers the strong assist a heavy full-size car needs for a firm, confident pedal.

The black powder coat resists chips and corrosion and gives your engine bay a clean, finished look. The polished brackets have slotted mounting holes, so you can fine-tune the booster’s position during installation. 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
• Polished mounting brackets for 1958–1970 full-size Chevy
• Pedal rod extension and clevis

Features

• Compact 8" size clears tall valve covers and big-block engines
• Dual diaphragm design for strong assist on heavy full-size cars
• Slotted brackets allow easy alignment during installation
• Durable black powder coat finish
• Standard GM bolt patterns, including the 3-3/8" square pattern
• Vacuum tested and quality inspected before shipping

Fits 1958–1970 Full-Size Chevrolet

• Impala, including SS, convertible, hardtop, and sedan
• Bel Air
• Biscayne
• Caprice (1965–1970)
• Delray (1958)
• Full-size wagons: Brookwood, Nomad, Parkwood, Kingswood, and Townsman
• El Camino (1959–1960)

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