Hedman Hedders HD BLACK LONG-TUBE HEADERS; 67-91 GM TRUCK, MOTORHOME; 283-400 WITH A.I.R.

Hedman Hedders HD BLACK LONG-TUBE HEADERS; 67-91 GM TRUCK, MOTORHOME; 283-400 WITH A.I.R.

The Hedman Hedders HD BLACK LONG-TUBE HEADERS; 67-91 GM TRUCK, MOTORHOME; 283-400 WITH A.I.R. are heavy-duty exhaust headers designed for classic GM trucks and motorhomes equipped with Small Block Chevy engines. These headers feature long-tube construction to optimize exhaust flow and scavenging, and are specifically designed to accommodate factory A.I.R. (Air Injection Reactor) smog systems.

Key Features

• Heavy-Duty Construction for Long-Term Durability
• Standard-Duty Black Ceramic-Coated Mild Steel
• 1-5/8 in. Diameter Primary Tubes
• 3 in. Ball and Socket Style Collector
• Integrated A.I.R. Smog Fittings

Fitment

• 1967-1987 Chevrolet/GMC 1/2-1 Ton 2WD Truck
• 1967-1987 Chevrolet/GMC 1/2-3/4 Ton 4WD Truck
• 1967-1991 Chevrolet/GMC 1/2-3/4 Ton SUV
• 1967-1991 Motorhomes (Centered Engine Only)
• Small Block Chevy 283-400 Engines with A.I.R.

Note: Designed specifically for vehicles with centered engines; verify engine positioning and chassis clearance before installation.