Wilwood 140-18154 Front Forged Narrow Superlite 6R Big Brake Kit for 1971-1991 GM Full-Size SUVs

Upgrade the front braking performance of your classic GM full-size SUV with the Wilwood 140-18154 Forged Narrow Superlite 6R Big Brake Kit. Designed for 1971-1991 Chevrolet and GMC full-size SUV applications, this complete system combines a lightweight aluminum six-piston caliper with a performance-oriented slotted iron rotor for improved stopping power, consistent braking, and dependable control during street and performance driving.
The Forged Narrow Superlite 6R caliper is engineered for high-performance applications where strength, weight control, and reliable operation are important. Its aluminum construction helps reduce unsprung weight, while the black powder coat finish provides a durable, professional appearance that complements a wide range of classic truck and SUV builds. The six-piston design promotes even pad loading and efficient heat management for confident braking performance.
This Wilwood front brake kit includes a 12.19-inch slotted iron rotor designed to help evacuate heat and maintain friction performance under demanding use. The slotted surface supports consistent pad contact and helps remove gases and debris from the braking interface. As a complete front brake solution, the kit is suited to enthusiasts restoring, upgrading, or modernizing compatible 1971-1991 GM full-size SUVs, including Blazer applications. Verify vehicle configuration and installation requirements before ordering.

Features:

• Brand: Wilwood

• Part Number: 140-18154

• Application: Front brake system for 1971-1991 GM full-size SUVs

• Caliper: Forged Narrow Superlite 6R six-piston design

• Rotor: Slotted iron rotor for consistent braking performance

• Rotor Size: 12.19-inch front rotor

• Caliper Material: Lightweight aluminum

• Finish: Durable black powder coat

• Kit Type: Complete front big brake kit

• Vehicle Fitment: GM full-size SUV and Blazer applications from 1971-1991