Hedman Hedders BLACK LONG-TUBE HEADERS For 67-91 GM 396-454 TRUCKS With A.I.R.

Hedman Hedders BLACK LONG-TUBE HEADERS For 67-91 GM 396-454 TRUCKS With A.I.R.

The Hedman Hedders BLACK LONG-TUBE HEADERS For 67-91 GM 396-454 TRUCKS With A.I.R. is a standard-duty exhaust solution designed to maximize exhaust flow and performance for Big Block Chevy-powered GM trucks and motorhomes equipped with Air Injection Reactor (A.I.R.) systems.

Key Features

• Standard-duty mild steel construction with a classic black paint finish
• Long-tube design for improved torque and horsepower across the RPM range
• 1-3/4 inch primary tubes for efficient exhaust scavenging
• 3 inch ball-and-socket style collector for a secure, leak-free connection

Fitment

• 1968-1995 Chevy/GMC Class A Motorhomes with 396-454 Big Block Chevy
• 1967-1991 GM 2WD/4WD Trucks and SUVs with Big Block Chevy V8
• Compatible with engines equipped with A.I.R. (Air Injection Reactor)

Note: Specifically designed for Centered Engine Chassis only; the black paint finish is for shipping protection and headers will require high-temp coating or paint for long-term use.