Hedman Hedders HD SILVER LONG-TUBE E.O. HEADERS For 67-91 GM 4WD SB TRUCKS With A.I.R.

Hedman Hedders HD SILVER LONG-TUBE E.O. HEADERS For 67-91 GM 4WD SB TRUCKS With A.I.R.

The Hedman Hedders HD SILVER LONG-TUBE E.O. HEADERS For 67-91 GM 4WD SB TRUCKS With A.I.R. is a heavy-duty ELITE series exhaust solution designed to maximize horsepower and torque for classic GM 4WD trucks while remaining emissions compliant. These full-length headers feature thicker primary tubes and robust flanges, making them ideal for high-performance engines and towing applications that generate extreme exhaust temperatures.

Key Features

• Heavy-Duty ELITE Construction with 14-Gauge Primary Tubes
• Matte-Silver Ceramic-Metallic Coating (1400°F Thermal Resistance)
• Gasketless Ball and Socket Collector Design for Leak-Free Seal
• Integrated A.I.R. System for Emissions Compliance

Fitment

• 1967-1991 GM 4WD 1/2 to 3/4 Ton Pick-Up, Blazer, and SUV
• Fits Small Block Chevy 283-400 Engines

Specifications

• Primary Tube Diameter: 1-5/8 in.
• Collector Diameter: 3 in.
• Flange Thickness: 3/8 in.
• Material: Mild Steel

Note: Designed for centered engine chassis only; please verify your specific vehicle application and A.I.R. requirements before ordering.