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

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

The Hedman Hedders BLACK LONG-TUBE E.O. HEADERS For 67-91 GM 4WD SB TRUCKS With A.I.R. provides an efficient exhaust solution for small block Chevy-powered 4WD trucks. These long-tube headers are engineered for 50-state legal performance, specifically accommodating vehicles equipped with Air Injection Reactor (A.I.R.) systems for optimized flow and scavenging.

Key Features

• Standard-duty mild steel construction with a classic black paint finish
• 1-5/8 inch primary tubes for increased exhaust velocity
• 3 inch ball-and-socket style collector for a secure, leak-free seal
• Design includes provisions for A.I.R. (Air Injection Reactor) emissions equipment

Fitment

• 1967-1987 Chevy/GMC 1/2 to 3/4 Ton 4WD Pickup Trucks, Blazers, and SUVs
• Compatible with 283-400 Small Block Chevy engines (Centered Engine Chassis only)
• Fits 1967-1991 GM 4WD Small Block trucks with factory A.I.R. systems

Note: Black paint is a temporary coating; headers require engine break-in and heat cycles for finish curing. Verify chassis and engine placement compatibility before ordering.